321120134375 has 24 divisors (see below), whose sum is σ = 402666290208. Its totient is φ = 256069300000.

The previous prime is 321120134347. The next prime is 321120134389. The reversal of 321120134375 is 573431021123.

It is not a de Polignac number, because 321120134375 - 2²⁶ = 321053025511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 806669 + ... + 1137081.

It is an arithmetic number, because the mean of its divisors is an integer number (16777762092).

Almost surely, 2^321120134375 is an apocalyptic number.

321120134375 is a deficient number, since it is larger than the sum of its proper divisors (81546155833).

321120134375 is an frugal number, since it uses more digits than its factorization.

321120134375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330749 (or 330729 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 321120134375 its reverse (573431021123), we get a palindrome (894551155498).

The spelling of 321120134375 in words is "three hundred twenty-one billion, one hundred twenty million, one hundred thirty-four thousand, three hundred seventy-five".