12431123553 has 16 divisors (see below), whose sum is σ = 16905490560. Its totient is φ = 8122418304.

The previous prime is 12431123543. The next prime is 12431123587. The reversal of 12431123553 is 35532113421.

It is not a de Polignac number, because 12431123553 - 2⁸ = 12431123297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12431123553.

It is not an unprimeable number, because it can be changed into a prime (12431123533) 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, 110508 + ... + 192546.

It is an arithmetic number, because the mean of its divisors is an integer number (1056593160).

Almost surely, 2^12431123553 is an apocalyptic number.

It is an amenable number.

12431123553 is a deficient number, since it is larger than the sum of its proper divisors (4474367007).

12431123553 is an equidigital number, since it uses as much as digits as its factorization.

12431123553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83048.

The product of its digits is 10800, while the sum is 30.

Adding to 12431123553 its reverse (35532113421), we get a palindrome (47963236974).

The spelling of 12431123553 in words is "twelve billion, four hundred thirty-one million, one hundred twenty-three thousand, five hundred fifty-three".