123013203304555 has 32 divisors (see below), whose sum is σ = 152480314508544. Its totient is φ = 95219251485696.

The previous prime is 123013203304549. The next prime is 123013203304573. The reversal of 123013203304555 is 555403302310321.

It is a cyclic number.

It is not a de Polignac number, because 123013203304555 - 2¹⁹ = 123013202780267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156631662 + ... + 157415068.

It is an arithmetic number, because the mean of its divisors is an integer number (4765009828392).

Almost surely, 2^{123013203304555} is an apocalyptic number.

123013203304555 is a deficient number, since it is larger than the sum of its proper divisors (29467111203989).

123013203304555 is an equidigital number, since it uses as much as digits as its factorization.

123013203304555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791655.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 123013203304555 its reverse (555403302310321), we get a palindrome (678416505614876).

The spelling of 123013203304555 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, three hundred four thousand, five hundred fifty-five".