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12311311230132 = 2233532372904403
BaseRepresentation
bin1011001100100111001101…
…0101010010010010110100
31121120221122110002011020220
42303021303111102102310
53103202031133331012
642103423250054340
72410314524552235
oct263116325222264
947527573064226
1012311311230132
113a1721a263782
12146a02127a3b0
136b3c4aa76375
14307c2908908c
151653a364a08c
hexb32735524b4

12311311230132 has 24 divisors (see below), whose sum is σ = 28726484084256. Its totient is φ = 4103757379488.

The previous prime is 12311311229981. The next prime is 12311311230133. The reversal of 12311311230132 is 23103211311321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311311230133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786643 + ... + 5691045.

It is an arithmetic number, because the mean of its divisors is an integer number (1196936836844).

Almost surely, 212311311230132 is an apocalyptic number.

12311311230132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311311230132 is an abundant number, since it is smaller than the sum of its proper divisors (16415172854124).

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

12311311230132 is a wasteful number, since it uses less digits than its factorization.

12311311230132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257647 (or 3257645 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 12311311230132 its reverse (23103211311321), we get a palindrome (35414522541453).

The spelling of 12311311230132 in words is "twelve trillion, three hundred eleven billion, three hundred eleven million, two hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 353237 706474 1059711 1412948 2119422 2904403 4238844 5808806 8713209 11617612 17426418 34852836 1025942602511 2051885205022 3077827807533 4103770410044 6155655615066 12311311230132