320100231000021 has 16 divisors (see below), whose sum is σ = 450360852612480. Its totient is φ = 201828382088960.

The previous prime is 320100231000001. The next prime is 320100231000103. The reversal of 320100231000021 is 120000132001023.

It is a cyclic number.

It is not a de Polignac number, because 320100231000021 - 2⁷ = 320100230999893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320100231000001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26062543200 + ... + 26062555481.

It is an arithmetic number, because the mean of its divisors is an integer number (28147553288280).

Almost surely, 2^{320100231000021} is an apocalyptic number.

It is an amenable number.

320100231000021 is a deficient number, since it is larger than the sum of its proper divisors (130260621612459).

320100231000021 is a wasteful number, since it uses less digits than its factorization.

320100231000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52125098796.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 320100231000021 its reverse (120000132001023), we get a palindrome (440100363001044).

The spelling of 320100231000021 in words is "three hundred twenty trillion, one hundred billion, two hundred thirty-one million, twenty-one", and thus it is an aban number.