31235400452032 has 112 divisors (see below), whose sum is σ = 73288249989120. Its totient is φ = 12923555097600.

The previous prime is 31235400452023. The next prime is 31235400452033. The reversal of 31235400452032 is 23025400453213.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31235400452033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120839407 + ... + 121097617.

Almost surely, 2^{31235400452032} is an apocalyptic number.

31235400452032 is a gapful number since it is divisible by the number (32) 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 31235400452032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36644124994560).

31235400452032 is an abundant number, since it is smaller than the sum of its proper divisors (42052849537088).

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

31235400452032 is a wasteful number, since it uses less digits than its factorization.

31235400452032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267570 (or 267560 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 31235400452032 in words is "thirty-one trillion, two hundred thirty-five billion, four hundred million, four hundred fifty-two thousand, thirty-two".