12440134131 has 32 divisors (see below), whose sum is σ = 17429852160. Its totient is φ = 7877199264.

The previous prime is 12440134127. The next prime is 12440134153. The reversal of 12440134131 is 13143104421.

It is not a de Polignac number, because 12440134131 - 2² = 12440134127 is a prime.

It is a super-2 number, since 2×12440134131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12440134171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7877700 + ... + 7879278.

It is an arithmetic number, because the mean of its divisors is an integer number (544682880).

Almost surely, 2^12440134131 is an apocalyptic number.

12440134131 is a deficient number, since it is larger than the sum of its proper divisors (4989718029).

12440134131 is a wasteful number, since it uses less digits than its factorization.

12440134131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12440134131 its reverse (13143104421), we get a palindrome (25583238552).

The spelling of 12440134131 in words is "twelve billion, four hundred forty million, one hundred thirty-four thousand, one hundred thirty-one".