331231102040 has 64 divisors (see below), whose sum is σ = 756087436800. Its totient is φ = 130575489408.

The previous prime is 331231101989. The next prime is 331231102051. The reversal of 331231102040 is 40201132133.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632707 + ... + 1824333.

It is an arithmetic number, because the mean of its divisors is an integer number (11813866200).

Almost surely, 2^331231102040 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 331231102040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (378043718400).

331231102040 is an abundant number, since it is smaller than the sum of its proper divisors (424856334760).

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

331231102040 is a wasteful number, since it uses less digits than its factorization.

331231102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192264 (or 192260 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 331231102040 its reverse (40201132133), we get a palindrome (371432234173).

The spelling of 331231102040 in words is "three hundred thirty-one billion, two hundred thirty-one million, one hundred two thousand, forty".