323120010021200 has 90 divisors (see below), whose sum is σ = 903037999490046. Its totient is φ = 110784003429120.

The previous prime is 323120010021199. The next prime is 323120010021241. The reversal of 323120010021200 is 2120010021323.

It can be written as a sum of positive squares in 3 ways, for example, as 4718383329856 + 318401626691344 = 2172184^2 + 17843812^2 .

It is a super-2 number, since 2×323120010021200² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8242837799 + ... + 8242876998.

Almost surely, 2^{323120010021200} is an apocalyptic number.

It is an amenable number.

323120010021200 is an abundant number, since it is smaller than the sum of its proper divisors (579917989468846).

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

323120010021200 is a wasteful number, since it uses less digits than its factorization.

323120010021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485714829 (or 16485714811 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 323120010021200 its reverse (2120010021323), we get a palindrome (325240020042523).

The spelling of 323120010021200 in words is "three hundred twenty-three trillion, one hundred twenty billion, ten million, twenty-one thousand, two hundred".