12431430231132 has 48 divisors (see below), whose sum is σ = 32316909553152. Its totient is φ = 3686949002880.

The previous prime is 12431430231107. The next prime is 12431430231137. The reversal of 12431430231132 is 23113203413421.

It is a super-2 number, since 2×12431430231132² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12431430231132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431430231137) 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, 1001882113 + ... + 1001894520.

It is an arithmetic number, because the mean of its divisors is an integer number (673268949024).

Almost surely, 2^{12431430231132} is an apocalyptic number.

12431430231132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12431430231132 is an abundant number, since it is smaller than the sum of its proper divisors (19885479322020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12431430231132 is a wasteful number, since it uses less digits than its factorization.

12431430231132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003776698 (or 2003776696 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 12431430231132 its reverse (23113203413421), we get a palindrome (35544633644553).

The spelling of 12431430231132 in words is "twelve trillion, four hundred thirty-one billion, four hundred thirty million, two hundred thirty-one thousand, one hundred thirty-two".