123015231135311 has 8 divisors (see below), whose sum is σ = 130868726519664. Its totient is φ = 115230325230720.

The previous prime is 123015231135271. The next prime is 123015231135317. The reversal of 123015231135311 is 113531132510321.

It is a happy number.

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 123015231135311 - 2¹⁸ = 123015230873167 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 (123015231135317) 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, 17147366240 + ... + 17147373413.

It is an arithmetic number, because the mean of its divisors is an integer number (16358590814958).

Almost surely, 2^{123015231135311} is an apocalyptic number.

123015231135311 is a deficient number, since it is larger than the sum of its proper divisors (7853495384353).

123015231135311 is a wasteful number, since it uses less digits than its factorization.

123015231135311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34294739881.

The product of its (nonzero) digits is 8100, while the sum is 32.

Adding to 123015231135311 its reverse (113531132510321), we get a palindrome (236546363645632).

The spelling of 123015231135311 in words is "one hundred twenty-three trillion, fifteen billion, two hundred thirty-one million, one hundred thirty-five thousand, three hundred eleven".