321031023123 has 16 divisors (see below), whose sum is σ = 434447129600. Its totient is φ = 210830143680.

The previous prime is 321031023109. The next prime is 321031023191. The reversal of 321031023123 is 321320130123.

It is not a de Polignac number, because 321031023123 - 2²⁵ = 320997468691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321031023123.

It is not an unprimeable number, because it can be changed into a prime (321031023923) 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, 1438738 + ... + 1646823.

It is an arithmetic number, because the mean of its divisors is an integer number (27152945600).

Almost surely, 2^321031023123 is an apocalyptic number.

321031023123 is a deficient number, since it is larger than the sum of its proper divisors (113416106477).

321031023123 is a wasteful number, since it uses less digits than its factorization.

321031023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086082.

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

Adding to 321031023123 its reverse (321320130123), we get a palindrome (642351153246).

The spelling of 321031023123 in words is "three hundred twenty-one billion, thirty-one million, twenty-three thousand, one hundred twenty-three".