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12311332021030 = 257478942045463
BaseRepresentation
bin1011001100100111010010…
…0100100110001100100110
31121120221200220012110000011
42303021310210212030212
53103202101444133110
642103425311440434
72410315166354140
oct263116444461446
947527626173004
1012311332021030
113a1722aa74239
12146a02822611a
136b3c52175783
14307c2bb3bc90
151653a53a548a
hexb3274926326

12311332021030 has 64 divisors (see below), whose sum is σ = 26155642245120. Its totient is φ = 4084800724224.

The previous prime is 12311332021013. The next prime is 12311332021139. The reversal of 12311332021030 is 3012023311321.

It is a super-2 number, since 2×123113320210302 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12311332020992 and 12311332021010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20729922 + ... + 21315541.

It is an arithmetic number, because the mean of its divisors is an integer number (408681910080).

Almost surely, 212311332021030 is an apocalyptic number.

12311332021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311332021030 is an abundant number, since it is smaller than the sum of its proper divisors (13844310224090).

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

12311332021030 is a wasteful number, since it uses less digits than its factorization.

12311332021030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42045613.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12311332021030 its reverse (3012023311321), we get a palindrome (15323355332351).

The spelling of 12311332021030 in words is "twelve trillion, three hundred eleven billion, three hundred thirty-two million, twenty-one thousand, thirty".

Divisors: 1 2 5 7 10 14 35 47 70 89 94 178 235 329 445 470 623 658 890 1246 1645 3115 3290 4183 6230 8366 20915 29281 41830 58562 146405 292810 42045463 84090926 210227315 294318241 420454630 588636482 1471591205 1976136761 2943182410 3742046207 3952273522 7484092414 9880683805 13832957327 18710231035 19761367610 26194323449 27665914654 37420462070 52388646898 69164786635 130971617245 138329573270 175876171729 261943234490 351752343458 879380858645 1231133202103 1758761717290 2462266404206 6155666010515 12311332021030