120115815223 has 4 divisors (see below), whose sum is σ = 120116698848. Its totient is φ = 120114931600.

The previous prime is 120115815199. The next prime is 120115815257. The reversal of 120115815223 is 322518511021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 120115815223 - 2⁵ = 120115815191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120115815263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190111 + ... + 525712.

It is an arithmetic number, because the mean of its divisors is an integer number (30029174712).

Almost surely, 2^120115815223 is an apocalyptic number.

120115815223 is a deficient number, since it is larger than the sum of its proper divisors (883625).

120115815223 is an equidigital number, since it uses as much as digits as its factorization.

120115815223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883624.

The product of its (nonzero) digits is 4800, while the sum is 31.

The spelling of 120115815223 in words is "one hundred twenty billion, one hundred fifteen million, eight hundred fifteen thousand, two hundred twenty-three".