321023400125 has 16 divisors (see below), whose sum is σ = 401566823424. Its totient is φ = 256222810000.

The previous prime is 321023400119. The next prime is 321023400127. The reversal of 321023400125 is 521004320123.

It is not a de Polignac number, because 321023400125 - 2²⁰ = 321022351549 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 321023400125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321023400127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2925461 + ... + 3033210.

It is an arithmetic number, because the mean of its divisors is an integer number (25097926464).

Almost surely, 2^321023400125 is an apocalyptic number.

It is an amenable number.

321023400125 is a deficient number, since it is larger than the sum of its proper divisors (80543423299).

321023400125 is an equidigital number, since it uses as much as digits as its factorization.

321023400125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959117 (or 5959107 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 321023400125 its reverse (521004320123), we get a palindrome (842027720248).

The spelling of 321023400125 in words is "three hundred twenty-one billion, twenty-three million, four hundred thousand, one hundred twenty-five".