12131422431 has 8 divisors (see below), whose sum is σ = 16176630960. Its totient is φ = 8086914432.

The previous prime is 12131422421. The next prime is 12131422441. The reversal of 12131422431 is 13422413121.

It is an interprime number because it is at equal distance from previous prime (12131422421) and next prime (12131422441).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12131422431 - 2⁵ = 12131422399 is a prime.

It is a super-2 number, since 2×12131422431² (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 (12131422421) 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 7 ways as a sum of consecutive naturals, for example, 133296 + ... + 205013.

It is an arithmetic number, because the mean of its divisors is an integer number (2022078870).

Almost surely, 2^12131422431 is an apocalyptic number.

12131422431 is a deficient number, since it is larger than the sum of its proper divisors (4045208529).

12131422431 is a wasteful number, since it uses less digits than its factorization.

12131422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350265.

The product of its digits is 1152, while the sum is 24.

Adding to 12131422431 its reverse (13422413121), we get a palindrome (25553835552).

The spelling of 12131422431 in words is "twelve billion, one hundred thirty-one million, four hundred twenty-two thousand, four hundred thirty-one".