321271403996 has 12 divisors (see below), whose sum is σ = 562231158552. Its totient is φ = 160633930128.

The previous prime is 321271403983. The next prime is 321271404017. The reversal of 321271403996 is 699304172123.

It is a happy number.

It is a super-2 number, since 2×321271403996² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321271403996.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18386 + ... + 801798.

It is an arithmetic number, because the mean of its divisors is an integer number (46852596546).

Almost surely, 2^321271403996 is an apocalyptic number.

It is an amenable number.

321271403996 is a deficient number, since it is larger than the sum of its proper divisors (240959754556).

321271403996 is a wasteful number, since it uses less digits than its factorization.

321271403996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885940 (or 885938 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The spelling of 321271403996 in words is "three hundred twenty-one billion, two hundred seventy-one million, four hundred three thousand, nine hundred ninety-six".