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13231203300000 = 25325572100191
BaseRepresentation
bin1100000010001010000100…
…1011000011001010100000
31201211220001022022002102200
43000202201023003022200
53213240001021100000
644050155245413200
72533631360255460
oct300424113031240
951756038262380
1013231203300000
11424135a365034
12159836726a200
1374c90a74abca
1433a57229dba0
1517e2921c3500
hexc08a12c32a0

13231203300000 has 432 divisors, whose sum is σ = 53748348885504. Its totient is φ = 3024273600000.

The previous prime is 13231203299983. The next prime is 13231203300001. The reversal of 13231203300000 is 330213231.

13231203300000 is a `hidden beast` number, since 1 + 323 + 12 + 0 + 330 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13231203300001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5249905 + ... + 7350095.

It is an arithmetic number, because the mean of its divisors is an integer number (124417474272).

Almost surely, 213231203300000 is an apocalyptic number.

13231203300000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231203300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26874174442752).

13231203300000 is an abundant number, since it is smaller than the sum of its proper divisors (40517145585504).

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

13231203300000 is an equidigital number, since it uses as much as digits as its factorization.

13231203300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100239 (or 2100208 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13231203300000 its reverse (330213231), we get a palindrome (13231533513231).

The spelling of 13231203300000 in words is "thirteen trillion, two hundred thirty-one billion, two hundred three million, three hundred thousand".