321402125 has 16 divisors (see below), whose sum is σ = 437576256. Its totient is φ = 233746000.

The previous prime is 321402113. The next prime is 321402131. The reversal of 321402125 is 521204123.

It is not a de Polignac number, because 321402125 - 2¹² = 321398029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321402097 and 321402106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115499 + ... + 118248.

It is an arithmetic number, because the mean of its divisors is an integer number (27348516).

Almost surely, 2^321402125 is an apocalyptic number.

It is an amenable number.

321402125 is a deficient number, since it is larger than the sum of its proper divisors (116174131).

321402125 is a wasteful number, since it uses less digits than its factorization.

321402125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233773 (or 233763 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 321402125 is about 17927.6915691898. The cubic root of 321402125 is about 684.9879231359.

Adding to 321402125 its reverse (521204123), we get a palindrome (842606248).

The spelling of 321402125 in words is "three hundred twenty-one million, four hundred two thousand, one hundred twenty-five".