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13231220013210 = 2354720694535449
BaseRepresentation
bin1100000010001010001000…
…1010110011100010011010
31201211220002110202012122110
43000202202022303202122
53213240014310410320
644050201043533150
72533631652315153
oct300424212634232
951756073665573
1013231220013210
11424136883aa01
12159837098a1b6
1374c911050294
1433a5745b092a
1517e2938c55e0
hexc08a22b389a

13231220013210 has 64 divisors (see below), whose sum is σ = 32446246464000. Its totient is φ = 3451584778752.

The previous prime is 13231220013197. The next prime is 13231220013241. The reversal of 13231220013210 is 1231002213231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 649566 + ... + 5185014.

It is an arithmetic number, because the mean of its divisors is an integer number (506972601000).

Almost surely, 213231220013210 is an apocalyptic number.

13231220013210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231220013210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16223123232000).

13231220013210 is an abundant number, since it is smaller than the sum of its proper divisors (19215026450790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231220013210 is a wasteful number, since it uses less digits than its factorization.

13231220013210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4537575.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13231220013210 its reverse (1231002213231), we get a palindrome (14462222226441).

The spelling of 13231220013210 in words is "thirteen trillion, two hundred thirty-one billion, two hundred twenty million, thirteen thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 2069 4138 6207 10345 12414 20690 31035 62070 97243 194486 291729 486215 583458 972430 1458645 2917290 4535449 9070898 13606347 22677245 27212694 45354490 68031735 136063470 213166103 426332206 639498309 1065830515 1278996618 2131661030 3197491545 6394983090 9383843981 18767687962 28151531943 46919219905 56303063886 93838439810 140757659715 281515319430 441040667107 882081334214 1323122001321 2205203335535 2646244002642 4410406671070 6615610006605 13231220013210