321345522356 has 24 divisors (see below), whose sum is σ = 564928064064. Its totient is φ = 159937895360.

The previous prime is 321345522319. The next prime is 321345522359. The reversal of 321345522356 is 653225543123.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321345522359) 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, 3374411 + ... + 3468333.

It is an arithmetic number, because the mean of its divisors is an integer number (23538669336).

Almost surely, 2^321345522356 is an apocalyptic number.

It is an amenable number.

321345522356 is a deficient number, since it is larger than the sum of its proper divisors (243582541708).

321345522356 is a wasteful number, since it uses less digits than its factorization.

321345522356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97831 (or 97829 counting only the distinct ones).

The product of its digits is 648000, while the sum is 41.

The spelling of 321345522356 in words is "three hundred twenty-one billion, three hundred forty-five million, five hundred twenty-two thousand, three hundred fifty-six".