12142433431 has 12 divisors (see below), whose sum is σ = 12694995264. Its totient is φ = 11601813600.

The previous prime is 12142433423. The next prime is 12142433453. The reversal of 12142433431 is 13433424121.

It is a happy number.

It is not a de Polignac number, because 12142433431 - 2³ = 12142433423 is a prime.

It is a super-2 number, since 2×12142433431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12142433431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142433411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162091 + ... + 224851.

It is an arithmetic number, because the mean of its divisors is an integer number (1057916272).

Almost surely, 2^12142433431 is an apocalyptic number.

12142433431 is a deficient number, since it is larger than the sum of its proper divisors (552561833).

12142433431 is an frugal number, since it uses more digits than its factorization.

12142433431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62950 (or 62871 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 12142433431 its reverse (13433424121), we get a palindrome (25575857552).

The spelling of 12142433431 in words is "twelve billion, one hundred forty-two million, four hundred thirty-three thousand, four hundred thirty-one".