123035215054211 has 4 divisors (see below), whose sum is σ = 127277808676800. Its totient is φ = 118792621431624.

The previous prime is 123035215054177. The next prime is 123035215054223. The reversal of 123035215054211 is 112450512530321.

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

It is a cyclic number.

It is not a de Polignac number, because 123035215054211 - 2³⁰ = 123034141312387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123035215084211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2121296811251 + ... + 2121296811308.

It is an arithmetic number, because the mean of its divisors is an integer number (31819452169200).

Almost surely, 2^{123035215054211} is an apocalyptic number.

123035215054211 is a deficient number, since it is larger than the sum of its proper divisors (4242593622589).

123035215054211 is an equidigital number, since it uses as much as digits as its factorization.

123035215054211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242593622588.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 123035215054211 its reverse (112450512530321), we get a palindrome (235485727584532).

The spelling of 123035215054211 in words is "one hundred twenty-three trillion, thirty-five billion, two hundred fifteen million, fifty-four thousand, two hundred eleven".