123554262455321 has 16 divisors (see below), whose sum is σ = 126022827647808. Its totient is φ = 121090823256000.

The previous prime is 123554262455297. The next prime is 123554262455401.

123554262455321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123554262455321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123554262455321.

It is not an unprimeable number, because it can be changed into a prime (123554262455021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336751271 + ... + 337117971.

It is an arithmetic number, because the mean of its divisors is an integer number (7876426727988).

Almost surely, 2^{123554262455321} is an apocalyptic number.

It is an amenable number.

123554262455321 is a deficient number, since it is larger than the sum of its proper divisors (2468565192487).

123554262455321 is a wasteful number, since it uses less digits than its factorization.

123554262455321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373672.

The product of its digits is 8640000, while the sum is 50.

The spelling of 123554262455321 in words is "one hundred twenty-three trillion, five hundred fifty-four billion, two hundred sixty-two million, four hundred fifty-five thousand, three hundred twenty-one".