100120115042 has 8 divisors (see below), whose sum is σ = 150803327532. Its totient is φ = 49852339200.

The previous prime is 100120115033. The next prime is 100120115099. The reversal of 100120115042 is 240511021001.

It can be written as a sum of positive squares in 2 ways, for example, as 99224370001 + 895745041 = 314999^2 + 29929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 100120115042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103858559 + ... + 103859522.

Almost surely, 2^100120115042 is an apocalyptic number.

100120115042 is a deficient number, since it is larger than the sum of its proper divisors (50683212490).

100120115042 is a wasteful number, since it uses less digits than its factorization.

100120115042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207718324.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 100120115042 its reverse (240511021001), we get a palindrome (340631136043).

The spelling of 100120115042 in words is "one hundred billion, one hundred twenty million, one hundred fifteen thousand, forty-two".