123355204250455 has 8 divisors (see below), whose sum is σ = 148026901604832. Its totient is φ = 98683725730848.

The previous prime is 123355204250431. The next prime is 123355204250471. The reversal of 123355204250455 is 554052402553321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123355204250455 - 2¹¹ = 123355204248407 is a prime.

It is a super-3 number, since 3×123355204250455³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53466004 + ... + 55725433.

It is an arithmetic number, because the mean of its divisors is an integer number (18503362700604).

Almost surely, 2^{123355204250455} is an apocalyptic number.

123355204250455 is a deficient number, since it is larger than the sum of its proper divisors (24671697354377).

123355204250455 is a wasteful number, since it uses less digits than its factorization.

123355204250455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109417385.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 123355204250455 in words is "one hundred twenty-three trillion, three hundred fifty-five billion, two hundred four million, two hundred fifty thousand, four hundred fifty-five".