12012032131 has 8 divisors (see below), whose sum is σ = 13124809728. Its totient is φ = 10902717000.

The previous prime is 12012032119. The next prime is 12012032147. The reversal of 12012032131 is 13123021021.

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

It is a cyclic number.

It is not a de Polignac number, because 12012032131 - 2¹⁷ = 12011901059 is a prime.

It is a super-2 number, since 2×12012032131² (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 (12012032101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858355 + ... + 872236.

It is an arithmetic number, because the mean of its divisors is an integer number (1640601216).

Almost surely, 2^12012032131 is an apocalyptic number.

12012032131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12012032131 is a deficient number, since it is larger than the sum of its proper divisors (1112777597).

12012032131 is a wasteful number, since it uses less digits than its factorization.

12012032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731233.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12012032131 its reverse (13123021021), we get a palindrome (25135053152).

It can be divided in two parts, 120120 and 32131, that added together give a palindrome (152251).

The spelling of 12012032131 in words is "twelve billion, twelve million, thirty-two thousand, one hundred thirty-one".