321132131012 has 24 divisors (see below), whose sum is σ = 700651922880. Its totient is φ = 125116414560.

The previous prime is 321132130901. The next prime is 321132131063. The reversal of 321132131012 is 210131231123.

It is a happy number.

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, 521318087 + ... + 521318702.

It is an arithmetic number, because the mean of its divisors is an integer number (29193830120).

Almost surely, 2^321132131012 is an apocalyptic number.

It is an amenable number.

321132131012 is an abundant number, since it is smaller than the sum of its proper divisors (379519791868).

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

321132131012 is a wasteful number, since it uses less digits than its factorization.

321132131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042636811 (or 1042636809 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321132131012 its reverse (210131231123), we get a palindrome (531263362135).

The spelling of 321132131012 in words is "three hundred twenty-one billion, one hundred thirty-two million, one hundred thirty-one thousand, twelve".