123124342223245 has 32 divisors (see below), whose sum is σ = 164456378296704. Its totient is φ = 87730118112000.

The previous prime is 123124342223243. The next prime is 123124342223257. The reversal of 123124342223245 is 542322243421321.

It is not a de Polignac number, because 123124342223245 - 2¹ = 123124342223243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123124342223198 and 123124342223207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123124342223243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28083687 + ... + 32170516.

It is an arithmetic number, because the mean of its divisors is an integer number (5139261821772).

Almost surely, 2^{123124342223245} is an apocalyptic number.

It is an amenable number.

123124342223245 is a deficient number, since it is larger than the sum of its proper divisors (41332036073459).

123124342223245 is a wasteful number, since it uses less digits than its factorization.

123124342223245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60254973.

The product of its digits is 552960, while the sum is 40.

Adding to 123124342223245 its reverse (542322243421321), we get a palindrome (665446585644566).

The spelling of 123124342223245 in words is "one hundred twenty-three trillion, one hundred twenty-four billion, three hundred forty-two million, two hundred twenty-three thousand, two hundred forty-five".