1312311233232 has 60 divisors (see below), whose sum is σ = 3677659529284. Its totient is φ = 436840266240.

The previous prime is 1312311233213. The next prime is 1312311233273. The reversal of 1312311233232 is 2323321132131.

1312311233232 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 311 + 23 + 323 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1196477194896 + 115834038336 = 1093836^2 + 340344^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1312311233196 and 1312311233205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6110869 + ... + 6321972.

Almost surely, 2^{1312311233232} is an apocalyptic number.

1312311233232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312311233232 is an abundant number, since it is smaller than the sum of its proper divisors (2365348296052).

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

1312311233232 is a wasteful number, since it uses less digits than its factorization.

1312311233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12433588 (or 12433579 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1312311233232 its reverse (2323321132131), we get a palindrome (3635632365363).

The spelling of 1312311233232 in words is "one trillion, three hundred twelve billion, three hundred eleven million, two hundred thirty-three thousand, two hundred thirty-two".