12011032131013 has 4 divisors (see below), whose sum is σ = 12011578332448. Its totient is φ = 12010485929580.

The previous prime is 12011032130939. The next prime is 12011032131083. The reversal of 12011032131013 is 31013123011021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011032131013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011032131083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273067731 + ... + 273111712.

It is an arithmetic number, because the mean of its divisors is an integer number (3002894583112).

Almost surely, 2^{12011032131013} is an apocalyptic number.

It is an amenable number.

12011032131013 is a deficient number, since it is larger than the sum of its proper divisors (546201435).

12011032131013 is an equidigital number, since it uses as much as digits as its factorization.

12011032131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546201434.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12011032131013 its reverse (31013123011021), we get a palindrome (43024155142034).

The spelling of 12011032131013 in words is "twelve trillion, eleven billion, thirty-two million, one hundred thirty-one thousand, thirteen".