31133212310004 has 96 divisors (see below), whose sum is σ = 84819169075200. Its totient is φ = 8884394283744.

The previous prime is 31133212309961. The next prime is 31133212310023. The reversal of 31133212310004 is 40001321233113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207884 + ... + 7982819.

It is an arithmetic number, because the mean of its divisors is an integer number (883533011200).

Almost surely, 2^{31133212310004} 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 31133212310004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42409584537600).

31133212310004 is an abundant number, since it is smaller than the sum of its proper divisors (53685956765196).

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

31133212310004 is a wasteful number, since it uses less digits than its factorization.

31133212310004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191554 (or 9191538 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31133212310004 its reverse (40001321233113), we get a palindrome (71134533543117).

The spelling of 31133212310004 in words is "thirty-one trillion, one hundred thirty-three billion, two hundred twelve million, three hundred ten thousand, four".