100120115043 has 40 divisors (see below), whose sum is σ = 161264504016. Its totient is φ = 61536801600.

The previous prime is 100120115033. The next prime is 100120115099. The reversal of 100120115043 is 340511021001.

It is not a de Polignac number, because 100120115043 - 2⁶ = 100120114979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100120115033) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 806608 + ... + 922418.

Almost surely, 2^100120115043 is an apocalyptic number.

100120115043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100120115043 is a deficient number, since it is larger than the sum of its proper divisors (61144388973).

100120115043 is a wasteful number, since it uses less digits than its factorization.

100120115043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116657 (or 116648 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 100120115043 its reverse (340511021001), we get a palindrome (440631136044).

The spelling of 100120115043 in words is "one hundred billion, one hundred twenty million, one hundred fifteen thousand, forty-three".