120434551315555 has 4 divisors (see below), whose sum is σ = 144521461578672. Its totient is φ = 96347641052440.

The previous prime is 120434551315553. The next prime is 120434551315597. The reversal of 120434551315555 is 555513155434021.

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

It is not a de Polignac number, because 120434551315555 - 2¹ = 120434551315553 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120434551315499 and 120434551315508.

It is not an unprimeable number, because it can be changed into a prime (120434551315553) 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, 12043455131551 + ... + 12043455131560.

It is an arithmetic number, because the mean of its divisors is an integer number (36130365394668).

Almost surely, 2^{120434551315555} is an apocalyptic number.

120434551315555 is a deficient number, since it is larger than the sum of its proper divisors (24086910263117).

120434551315555 is an equidigital number, since it uses as much as digits as its factorization.

120434551315555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086910263116.

The product of its (nonzero) digits is 4500000, while the sum is 49.

The spelling of 120434551315555 in words is "one hundred twenty trillion, four hundred thirty-four billion, five hundred fifty-one million, three hundred fifteen thousand, five hundred fifty-five".