321123425 has 12 divisors (see below), whose sum is σ = 455078016. Its totient is φ = 220198800.

The previous prime is 321123419. The next prime is 321123433. The reversal of 321123425 is 524321123.

It is a de Polignac number, because none of the positive numbers 2^k-321123425 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 321123425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 917321 + ... + 917670.

It is an arithmetic number, because the mean of its divisors is an integer number (37923168).

Almost surely, 2^321123425 is an apocalyptic number.

321123425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321123425 is a deficient number, since it is larger than the sum of its proper divisors (133954591).

321123425 is a wasteful number, since it uses less digits than its factorization.

321123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835008 (or 1835003 counting only the distinct ones).

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

The square root of 321123425 is about 17919.9169919952. The cubic root of 321123425 is about 684.7898728570.

Adding to 321123425 its reverse (524321123), we get a palindrome (845444548).

The spelling of 321123425 in words is "three hundred twenty-one million, one hundred twenty-three thousand, four hundred twenty-five".