12132311142 has 16 divisors (see below), whose sum is σ = 27730996992. Its totient is φ = 3466374600.

The previous prime is 12132311123. The next prime is 12132311173. The reversal of 12132311142 is 24111323121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144432234 + ... + 144432317.

It is an arithmetic number, because the mean of its divisors is an integer number (1733187312).

Almost surely, 2^12132311142 is an apocalyptic number.

12132311142 is an abundant number, since it is smaller than the sum of its proper divisors (15598685850).

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

12132311142 is a wasteful number, since it uses less digits than its factorization.

12132311142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288864563.

The product of its digits is 288, while the sum is 21.

Adding to 12132311142 its reverse (24111323121), we get a palindrome (36243634263).

The spelling of 12132311142 in words is "twelve billion, one hundred thirty-two million, three hundred eleven thousand, one hundred forty-two".