123031134345011 has 8 divisors (see below), whose sum is σ = 123038843281200. Its totient is φ = 123023425719040.

The previous prime is 123031134345001. The next prime is 123031134345023. The reversal of 123031134345011 is 110543431130321.

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 123031134345011 - 2²² = 123031130150707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031134345001) 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, 1742146460 + ... + 1742217078.

It is an arithmetic number, because the mean of its divisors is an integer number (15379855410150).

Almost surely, 2^{123031134345011} is an apocalyptic number.

123031134345011 is a deficient number, since it is larger than the sum of its proper divisors (7708936189).

123031134345011 is an equidigital number, since it uses as much as digits as its factorization.

123031134345011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155109.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 123031134345011 its reverse (110543431130321), we get a palindrome (233574565475332).

The spelling of 123031134345011 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred thirty-four million, three hundred forty-five thousand, eleven".