321404212321392 has 40 divisors (see below), whose sum is σ = 830295915696000. Its totient is φ = 107134518016960.

The previous prime is 321404212321303. The next prime is 321404212321393. The reversal of 321404212321392 is 293123212404123.

It is a self number, because there is not a number n which added to its sum of digits gives 321404212321392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321404212321393) 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, 17732467 + ... + 30939437.

It is an arithmetic number, because the mean of its divisors is an integer number (20757397892400).

Almost surely, 2^{321404212321392} is an apocalyptic number.

It is an amenable number.

321404212321392 is an abundant number, since it is smaller than the sum of its proper divisors (508891703374608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321404212321392 is a wasteful number, since it uses less digits than its factorization.

321404212321392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13713981 (or 13713975 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 321404212321392 in words is "three hundred twenty-one trillion, four hundred four billion, two hundred twelve million, three hundred twenty-one thousand, three hundred ninety-two".