12131004045 has 8 divisors (see below), whose sum is σ = 19409606496. Its totient is φ = 6469868816.

The previous prime is 12131004037. The next prime is 12131004071. The reversal of 12131004045 is 54040013121.

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 12131004045 - 2³ = 12131004037 is a prime.

It is a super-2 number, since 2×12131004045² (a number of 21 digits) contains 22 as substring.

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, 404366787 + ... + 404366816.

It is an arithmetic number, because the mean of its divisors is an integer number (2426200812).

Almost surely, 2^12131004045 is an apocalyptic number.

12131004045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12131004045 is a deficient number, since it is larger than the sum of its proper divisors (7278602451).

12131004045 is an equidigital number, since it uses as much as digits as its factorization.

12131004045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808733611.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12131004045 its reverse (54040013121), we get a palindrome (66171017166).

The spelling of 12131004045 in words is "twelve billion, one hundred thirty-one million, four thousand, forty-five".