321012304323400 has 48 divisors (see below), whose sum is σ = 746372584722240. Its totient is φ = 128401656840000.

The previous prime is 321012304323383. The next prime is 321012304323401. The reversal of 321012304323400 is 4323403210123.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (321012304323401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12512476 + ... + 28259275.

It is an arithmetic number, because the mean of its divisors is an integer number (15549428848380).

Almost surely, 2^{321012304323400} is an apocalyptic number.

It is an amenable number.

321012304323400 is an abundant number, since it is smaller than the sum of its proper divisors (425360280398840).

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

321012304323400 is a wasteful number, since it uses less digits than its factorization.

321012304323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40811134 (or 40811125 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321012304323400 its reverse (4323403210123), we get a palindrome (325335707533523).

The spelling of 321012304323400 in words is "three hundred twenty-one trillion, twelve billion, three hundred four million, three hundred twenty-three thousand, four hundred".