123012211445311 has 8 divisors (see below), whose sum is σ = 125029846577664. Its totient is φ = 120994609909920.

The previous prime is 123012211445293. The next prime is 123012211445327. The reversal of 123012211445311 is 113544112210321.

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 123012211445311 - 2¹³ = 123012211437119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012211445381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962815 + ... + 15714688.

It is an arithmetic number, because the mean of its divisors is an integer number (15628730822208).

Almost surely, 2^{123012211445311} is an apocalyptic number.

123012211445311 is a deficient number, since it is larger than the sum of its proper divisors (2017635132353).

123012211445311 is a wasteful number, since it uses less digits than its factorization.

123012211445311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16798481.

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 123012211445311 its reverse (113544112210321), we get a palindrome (236556323655632).

The spelling of 123012211445311 in words is "one hundred twenty-three trillion, twelve billion, two hundred eleven million, four hundred forty-five thousand, three hundred eleven".