31204402412032 has 80 divisors (see below), whose sum is σ = 63978555199680. Its totient is φ = 15196184543232.

The previous prime is 31204402412023. The next prime is 31204402412047. The reversal of 31204402412032 is 23021420440213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5764069 + ... + 9779227.

It is an arithmetic number, because the mean of its divisors is an integer number (799731939996).

Almost surely, 2^{31204402412032} is an apocalyptic number.

31204402412032 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 31204402412032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31989277599840).

31204402412032 is an abundant number, since it is smaller than the sum of its proper divisors (32774152787648).

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

31204402412032 is an equidigital number, since it uses as much as digits as its factorization.

31204402412032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015573 (or 4015557 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31204402412032 its reverse (23021420440213), we get a palindrome (54225822852245).

The spelling of 31204402412032 in words is "thirty-one trillion, two hundred four billion, four hundred two million, four hundred twelve thousand, thirty-two".