123012315335311 has 4 divisors (see below), whose sum is σ = 129486647721400. Its totient is φ = 116537982949224.

The previous prime is 123012315335269. The next prime is 123012315335389. The reversal of 123012315335311 is 113533513210321.

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 123012315335311 - 2²¹ = 123012313238159 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 (123012315333311) 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, 3237166193016 + ... + 3237166193053.

It is an arithmetic number, because the mean of its divisors is an integer number (32371661930350).

Almost surely, 2^{123012315335311} is an apocalyptic number.

123012315335311 is a deficient number, since it is larger than the sum of its proper divisors (6474332386089).

123012315335311 is an equidigital number, since it uses as much as digits as its factorization.

123012315335311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6474332386088.

The product of its (nonzero) digits is 24300, while the sum is 34.

Adding to 123012315335311 its reverse (113533513210321), we get a palindrome (236545828545632).

The spelling of 123012315335311 in words is "one hundred twenty-three trillion, twelve billion, three hundred fifteen million, three hundred thirty-five thousand, three hundred eleven".