321031402423 has 8 divisors (see below), whose sum is σ = 326974252928. Its totient is φ = 315122414904.

The previous prime is 321031402399. The next prime is 321031402427. The reversal of 321031402423 is 324204130123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321031402423 is a prime.

It is a super-2 number, since 2×321031402423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321031402427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8446611 + ... + 8484532.

It is an arithmetic number, because the mean of its divisors is an integer number (40871781616).

Almost surely, 2^321031402423 is an apocalyptic number.

321031402423 is a deficient number, since it is larger than the sum of its proper divisors (5942850505).

321031402423 is a wasteful number, since it uses less digits than its factorization.

321031402423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16931493.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321031402423 its reverse (324204130123), we get a palindrome (645235532546).

The spelling of 321031402423 in words is "three hundred twenty-one billion, thirty-one million, four hundred two thousand, four hundred twenty-three".