12117442231623 has 16 divisors (see below), whose sum is σ = 16555176691200. Its totient is φ = 7879109008320.

The previous prime is 12117442231597. The next prime is 12117442231667. The reversal of 12117442231623 is 32613224471121.

It is not a de Polignac number, because 12117442231623 - 2¹³ = 12117442223431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117442231673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13012063 + ... + 13912176.

It is an arithmetic number, because the mean of its divisors is an integer number (1034698543200).

Almost surely, 2^{12117442231623} is an apocalyptic number.

12117442231623 is a deficient number, since it is larger than the sum of its proper divisors (4437734459577).

12117442231623 is a wasteful number, since it uses less digits than its factorization.

12117442231623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26927942.

The product of its digits is 96768, while the sum is 39.

The spelling of 12117442231623 in words is "twelve trillion, one hundred seventeen billion, four hundred forty-two million, two hundred thirty-one thousand, six hundred twenty-three".