320100012100 has 72 divisors (see below), whose sum is σ = 757880742528. Its totient is φ = 116382076800.

The previous prime is 320100012097. The next prime is 320100012139. The reversal of 320100012100 is 1210001023.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8646229 + ... + 8683171.

It is an arithmetic number, because the mean of its divisors is an integer number (10526121424).

Almost surely, 2^320100012100 is an apocalyptic number.

It is an amenable number.

320100012100 is an abundant number, since it is smaller than the sum of its proper divisors (437780730428).

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

320100012100 is a wasteful number, since it uses less digits than its factorization.

320100012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44845 (or 44838 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 320100012100 its reverse (1210001023), we get a palindrome (321310013123).

The spelling of 320100012100 in words is "three hundred twenty billion, one hundred million, twelve thousand, one hundred".