100020043204 has 12 divisors (see below), whose sum is σ = 175049120428. Its totient is φ = 50006008800.

The previous prime is 100020043199. The next prime is 100020043241. The reversal of 100020043204 is 402340020001.

It can be written as a sum of positive squares in 2 ways, for example, as 88345672900 + 11674370304 = 297230^2 + 108048^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946767 + ... + 1047094.

Almost surely, 2^100020043204 is an apocalyptic number.

It is an amenable number.

100020043204 is a deficient number, since it is larger than the sum of its proper divisors (75029077224).

100020043204 is a wasteful number, since it uses less digits than its factorization.

100020043204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006406 (or 2006404 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 100020043204 its reverse (402340020001), we get a palindrome (502360063205).

The spelling of 100020043204 in words is "one hundred billion, twenty million, forty-three thousand, two hundred four".