120515054423255 has 4 divisors (see below), whose sum is σ = 144618065307912. Its totient is φ = 96412043538600.

The previous prime is 120515054423251. The next prime is 120515054423329. The reversal of 120515054423255 is 552324450515021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120515054423255 - 2² = 120515054423251 is a prime.

It is a super-2 number, since 2×120515054423255² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120515054423251) 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, 12051505442321 + ... + 12051505442330.

It is an arithmetic number, because the mean of its divisors is an integer number (36154516326978).

Almost surely, 2^{120515054423255} is an apocalyptic number.

120515054423255 is a deficient number, since it is larger than the sum of its proper divisors (24103010884657).

120515054423255 is an equidigital number, since it uses as much as digits as its factorization.

120515054423255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24103010884656.

The product of its (nonzero) digits is 1200000, while the sum is 44.

The spelling of 120515054423255 in words is "one hundred twenty trillion, five hundred fifteen billion, fifty-four million, four hundred twenty-three thousand, two hundred fifty-five".