312113121232 has 80 divisors (see below), whose sum is σ = 676613818944. Its totient is φ = 138239360000.

The previous prime is 312113121227. The next prime is 312113121241. The reversal of 312113121232 is 232121311213.

It is a super-2 number, since 2×312113121232² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5941482 + ... + 5993782.

Almost surely, 2^312113121232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312113121232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338306909472).

312113121232 is an abundant number, since it is smaller than the sum of its proper divisors (364500697712).

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

312113121232 is a wasteful number, since it uses less digits than its factorization.

312113121232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53188 (or 53182 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 312113121232 its reverse (232121311213), we get a palindrome (544234432445).

The spelling of 312113121232 in words is "three hundred twelve billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-two".