100031212099 has 32 divisors (see below), whose sum is σ = 130596834816. Its totient is φ = 74353144320.

The previous prime is 100031212093. The next prime is 100031212241. The reversal of 100031212099 is 990212130001.

It is not a de Polignac number, because 100031212099 - 2³ = 100031212091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100031212091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 787104 + ... + 905314.

It is an arithmetic number, because the mean of its divisors is an integer number (4081151088).

Almost surely, 2^100031212099 is an apocalyptic number.

100031212099 is a deficient number, since it is larger than the sum of its proper divisors (30565622717).

100031212099 is a wasteful number, since it uses less digits than its factorization.

100031212099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118795.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 100031212099 in words is "one hundred billion, thirty-one million, two hundred twelve thousand, ninety-nine".