321031304425 has 24 divisors (see below), whose sum is σ = 432633342680. Its totient is φ = 234894297600.

The previous prime is 321031304393. The next prime is 321031304537. The reversal of 321031304425 is 524403130123.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 93178783504 + 227852520921 = 305252^2 + 477339^2 .

It is not a de Polignac number, because 321031304425 - 2⁵ = 321031304393 is a prime.

It is a super-2 number, since 2×321031304425² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321031304393 and 321031304402.

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, 4495716 + ... + 4566565.

Almost surely, 2^321031304425 is an apocalyptic number.

It is an amenable number.

321031304425 is a deficient number, since it is larger than the sum of its proper divisors (111602038255).

321031304425 is a wasteful number, since it uses less digits than its factorization.

321031304425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062413 (or 9062408 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 321031304425 its reverse (524403130123), we get a palindrome (845434434548).

The spelling of 321031304425 in words is "three hundred twenty-one billion, thirty-one million, three hundred four thousand, four hundred twenty-five".