12132111131 has 4 divisors (see below), whose sum is σ = 13865269872. Its totient is φ = 10398952392.

The previous prime is 12132111107. The next prime is 12132111137. The reversal of 12132111131 is 13111123121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13111123121 = 2309 ⋅5678269.

It is a cyclic number.

It is not a de Polignac number, because 12132111131 - 2¹⁸ = 12131848987 is a prime.

It is a super-2 number, since 2×12132111131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12132111137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866579360 + ... + 866579373.

It is an arithmetic number, because the mean of its divisors is an integer number (3466317468).

Almost surely, 2^12132111131 is an apocalyptic number.

12132111131 is a deficient number, since it is larger than the sum of its proper divisors (1733158741).

12132111131 is an equidigital number, since it uses as much as digits as its factorization.

12132111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733158740.

The product of its digits is 36, while the sum is 17.

Adding to 12132111131 its reverse (13111123121), we get a palindrome (25243234252).

The spelling of 12132111131 in words is "twelve billion, one hundred thirty-two million, one hundred eleven thousand, one hundred thirty-one".