12124453431 has 16 divisors (see below), whose sum is σ = 17669035008. Its totient is φ = 7362096000.

The previous prime is 12124453421. The next prime is 12124453433. The reversal of 12124453431 is 13435442121.

It is not a de Polignac number, because 12124453431 - 2²³ = 12116064823 is a prime.

It is a super-2 number, since 2×12124453431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124453433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3832845 + ... + 3836006.

It is an arithmetic number, because the mean of its divisors is an integer number (1104314688).

Almost surely, 2^12124453431 is an apocalyptic number.

12124453431 is a deficient number, since it is larger than the sum of its proper divisors (5544581577).

12124453431 is a wasteful number, since it uses less digits than its factorization.

12124453431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7668902.

The product of its digits is 11520, while the sum is 30.

Adding to 12124453431 its reverse (13435442121), we get a palindrome (25559895552).

The spelling of 12124453431 in words is "twelve billion, one hundred twenty-four million, four hundred fifty-three thousand, four hundred thirty-one".