123241434402155 has 16 divisors (see below), whose sum is σ = 156383780813568. Its totient is φ = 93085583808000.

The previous prime is 123241434402139. The next prime is 123241434402179. The reversal of 123241434402155 is 551204434142321.

It is not a de Polignac number, because 123241434402155 - 2⁴ = 123241434402139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9696408626 + ... + 9696421335.

It is an arithmetic number, because the mean of its divisors is an integer number (9773986300848).

Almost surely, 2^{123241434402155} is an apocalyptic number.

123241434402155 is a deficient number, since it is larger than the sum of its proper divisors (33142346411413).

123241434402155 is a wasteful number, since it uses less digits than its factorization.

123241434402155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19392830038.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 123241434402155 its reverse (551204434142321), we get a palindrome (674445868544476).

The spelling of 123241434402155 in words is "one hundred twenty-three trillion, two hundred forty-one billion, four hundred thirty-four million, four hundred two thousand, one hundred fifty-five".