100120115 has 8 divisors (see below), whose sum is σ = 120432048. Its totient is φ = 79904160.

The previous prime is 100120091. The next prime is 100120159. The reversal of 100120115 is 511021001.

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

It is not a de Polignac number, because 100120115 - 2¹⁰ = 100119091 is a prime.

It is a super-2 number, since 2×100120115² = 20048074855226450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120096 and 100120105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21677 + ... + 25886.

It is an arithmetic number, because the mean of its divisors is an integer number (15054006).

Almost surely, 2^100120115 is an apocalyptic number.

100120115 is a deficient number, since it is larger than the sum of its proper divisors (20311933).

100120115 is an equidigital number, since it uses as much as digits as its factorization.

100120115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47989.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 100120115 is about 10006.0039476306. The cubic root of 100120115 is about 464.3446504840.

Adding to 100120115 its reverse (511021001), we get a palindrome (611141116).

The spelling of 100120115 in words is "one hundred million, one hundred twenty thousand, one hundred fifteen".