100320431021 has 8 divisors (see below), whose sum is σ = 103397751744. Its totient is φ = 97273133280.

The previous prime is 100320430999. The next prime is 100320431023. The reversal of 100320431021 is 120134023001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100320431021 - 2¹⁰ = 100320429997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320431023) 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, 7498961 + ... + 7512326.

It is an arithmetic number, because the mean of its divisors is an integer number (12924718968).

Almost surely, 2^100320431021 is an apocalyptic number.

It is an amenable number.

100320431021 is a deficient number, since it is larger than the sum of its proper divisors (3077320723).

100320431021 is a wasteful number, since it uses less digits than its factorization.

100320431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15011491.

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

Adding to 100320431021 its reverse (120134023001), we get a palindrome (220454454022).

The spelling of 100320431021 in words is "one hundred billion, three hundred twenty million, four hundred thirty-one thousand, twenty-one".