321032012331 has 16 divisors (see below), whose sum is σ = 428523788288. Its totient is φ = 213780924000.

The previous prime is 321032012297. The next prime is 321032012333. The reversal of 321032012331 is 133210230123.

It is a de Polignac number, because none of the positive numbers 2^k-321032012331 is a prime.

It is a super-2 number, since 2×321032012331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321032012298 and 321032012307.

It is not an unprimeable number, because it can be changed into a prime (321032012333) 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, 10739556 + ... + 10769406.

It is an arithmetic number, because the mean of its divisors is an integer number (26782736768).

Almost surely, 2^321032012331 is an apocalyptic number.

321032012331 is a deficient number, since it is larger than the sum of its proper divisors (107491775957).

321032012331 is a wasteful number, since it uses less digits than its factorization.

321032012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33762.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 321032012331 its reverse (133210230123), we get a palindrome (454242242454).

The spelling of 321032012331 in words is "three hundred twenty-one billion, thirty-two million, twelve thousand, three hundred thirty-one".