100231332021 has 12 divisors (see below), whose sum is σ = 144839376448. Its totient is φ = 66792833064.

The previous prime is 100231332017. The next prime is 100231332037. The reversal of 100231332021 is 120233132001.

100231332021 is a `hidden beast` number, since 10 + 0 + 2 + 313 + 320 + 21 = 666.

It is not a de Polignac number, because 100231332021 - 2² = 100231332017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100231331985 and 100231332003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231332821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2315275 + ... + 2358168.

Almost surely, 2^100231332021 is an apocalyptic number.

It is an amenable number.

100231332021 is a deficient number, since it is larger than the sum of its proper divisors (44608044427).

100231332021 is a wasteful number, since it uses less digits than its factorization.

100231332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675832 (or 4675829 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 100231332021 its reverse (120233132001), we get a palindrome (220464464022).

The spelling of 100231332021 in words is "one hundred billion, two hundred thirty-one million, three hundred thirty-two thousand, twenty-one".