323123202140 has 12 divisors (see below), whose sum is σ = 678558724536. Its totient is φ = 129249280848.

The previous prime is 323123202133. The next prime is 323123202169. The reversal of 323123202140 is 41202321323.

It is a super-2 number, since 2×323123202140² (a number of 24 digits) contains 22 as substring.

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, 8078080034 + ... + 8078080073.

It is an arithmetic number, because the mean of its divisors is an integer number (56546560378).

Almost surely, 2^323123202140 is an apocalyptic number.

It is an amenable number.

323123202140 is an abundant number, since it is smaller than the sum of its proper divisors (355435522396).

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

323123202140 is a wasteful number, since it uses less digits than its factorization.

323123202140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16156160116 (or 16156160114 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 323123202140 its reverse (41202321323), we get a palindrome (364325523463).

The spelling of 323123202140 in words is "three hundred twenty-three billion, one hundred twenty-three million, two hundred two thousand, one hundred forty".