331232321031 has 16 divisors (see below), whose sum is σ = 450346091520. Its totient is φ = 216512503200.

The previous prime is 331232320999. The next prime is 331232321033. The reversal of 331232321031 is 130123232133.

It is not a de Polignac number, because 331232321031 - 2⁵ = 331232320999 is a prime.

It is a super-2 number, since 2×331232321031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331232320992 and 331232321010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331232321033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5275471 + ... + 5337888.

It is an arithmetic number, because the mean of its divisors is an integer number (28146630720).

Almost surely, 2^331232321031 is an apocalyptic number.

331232321031 is a deficient number, since it is larger than the sum of its proper divisors (119113770489).

331232321031 is a wasteful number, since it uses less digits than its factorization.

331232321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10613566.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331232321031 its reverse (130123232133), we get a palindrome (461355553164).

The spelling of 331232321031 in words is "three hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, thirty-one".