31112323032 has 96 divisors (see below), whose sum is σ = 90570355200. Its totient is φ = 8880330816.

The previous prime is 31112323001. The next prime is 31112323093. The reversal of 31112323032 is 23032321113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1209133 + ... + 1234595.

It is an arithmetic number, because the mean of its divisors is an integer number (943441200).

Almost surely, 2^31112323032 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 31112323032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45285177600).

31112323032 is an abundant number, since it is smaller than the sum of its proper divisors (59458032168).

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

31112323032 is a wasteful number, since it uses less digits than its factorization.

31112323032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26525 (or 26514 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31112323032 its reverse (23032321113), we get a palindrome (54144644145).

The spelling of 31112323032 in words is "thirty-one billion, one hundred twelve million, three hundred twenty-three thousand, thirty-two".