331031001132 has 144 divisors (see below), whose sum is σ = 939558896640. Its totient is φ = 97568561664.

The previous prime is 331031001097. The next prime is 331031001143. The reversal of 331031001132 is 231100130133.

It is a happy number.

331031001132 is a `hidden beast` number, since 3 + 310 + 310 + 0 + 11 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1627618 + ... + 1819670.

It is an arithmetic number, because the mean of its divisors is an integer number (6524714560).

Almost surely, 2^331031001132 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 331031001132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469779448320).

331031001132 is an abundant number, since it is smaller than the sum of its proper divisors (608527895508).

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

331031001132 is a wasteful number, since it uses less digits than its factorization.

331031001132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192232 (or 192227 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 331031001132 its reverse (231100130133), we get a palindrome (562131131265).

The spelling of 331031001132 in words is "three hundred thirty-one billion, thirty-one million, one thousand, one hundred thirty-two".