120117923 has 12 divisors (see below), whose sum is σ = 124573080. Its totient is φ = 115767072.

The previous prime is 120117889. The next prime is 120117931. The reversal of 120117923 is 329711021.

It is not a de Polignac number, because 120117923 - 2⁶ = 120117859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120117892 and 120117901.

It is not an unprimeable number, because it can be changed into a prime (120117953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 719186 + ... + 719352.

It is an arithmetic number, because the mean of its divisors is an integer number (10381090).

Almost surely, 2^120117923 is an apocalyptic number.

120117923 is a deficient number, since it is larger than the sum of its proper divisors (4455157).

120117923 is an frugal number, since it uses more digits than its factorization.

120117923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 120117923 is about 10959.8322523659. The cubic root of 120117923 is about 493.4039303746.

Adding to 120117923 its reverse (329711021), we get a palindrome (449828944).

The spelling of 120117923 in words is "one hundred twenty million, one hundred seventeen thousand, nine hundred twenty-three".