100331202012321 has 16 divisors (see below), whose sum is σ = 152895923811200. Its totient is φ = 57328259442048.

The previous prime is 100331202012257. The next prime is 100331202012323. The reversal of 100331202012321 is 123210202133001.

It is not a de Polignac number, because 100331202012321 - 2⁶ = 100331202012257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100331202012323) 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, 160346716 + ... + 160971213.

It is an arithmetic number, because the mean of its divisors is an integer number (9555995238200).

Almost surely, 2^{100331202012321} is an apocalyptic number.

It is an amenable number.

100331202012321 is a deficient number, since it is larger than the sum of its proper divisors (52564721798879).

100331202012321 is a wasteful number, since it uses less digits than its factorization.

100331202012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321332808.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 100331202012321 its reverse (123210202133001), we get a palindrome (223541404145322).

The spelling of 100331202012321 in words is "one hundred trillion, three hundred thirty-one billion, two hundred two million, twelve thousand, three hundred twenty-one".