123045334310155 has 4 divisors (see below), whose sum is σ = 147654401172192. Its totient is φ = 98436267448120.

The previous prime is 123045334310111. The next prime is 123045334310219. The reversal of 123045334310155 is 551013433540321.

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

It is not a de Polignac number, because 123045334310155 - 2⁷ = 123045334310027 is a prime.

It is a super-2 number, since 2×123045334310155² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12304533431011 + ... + 12304533431020.

It is an arithmetic number, because the mean of its divisors is an integer number (36913600293048).

Almost surely, 2^{123045334310155} is an apocalyptic number.

123045334310155 is a deficient number, since it is larger than the sum of its proper divisors (24609066862037).

123045334310155 is an equidigital number, since it uses as much as digits as its factorization.

123045334310155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24609066862036.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 123045334310155 its reverse (551013433540321), we get a palindrome (674058767850476).

The spelling of 123045334310155 in words is "one hundred twenty-three trillion, forty-five billion, three hundred thirty-four million, three hundred ten thousand, one hundred fifty-five".