321310031002 has 16 divisors (see below), whose sum is σ = 493133380992. Its totient is φ = 156973373280.

The previous prime is 321310030991. The next prime is 321310031117. The reversal of 321310031002 is 200130013123.

It is a super-2 number, since 2×321310031002² (a number of 24 digits) contains 22 as substring.

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, 10268274 + ... + 10299517.

It is an arithmetic number, because the mean of its divisors is an integer number (30820836312).

Almost surely, 2^321310031002 is an apocalyptic number.

321310031002 is a deficient number, since it is larger than the sum of its proper divisors (171823349990).

321310031002 is a wasteful number, since it uses less digits than its factorization.

321310031002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20567973.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 321310031002 its reverse (200130013123), we get a palindrome (521440044125).

The spelling of 321310031002 in words is "three hundred twenty-one billion, three hundred ten million, thirty-one thousand, two".