12400336131 has 8 divisors (see below), whose sum is σ = 16544063760. Its totient is φ = 8261749632.

The previous prime is 12400336043. The next prime is 12400336141. The reversal of 12400336131 is 13163300421.

It is a happy number.

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

It is not a de Polignac number, because 12400336131 - 2¹⁹ = 12399811843 is a prime.

It is a super-2 number, since 2×12400336131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12400336141) 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, 1279650 + ... + 1289303.

It is an arithmetic number, because the mean of its divisors is an integer number (2068007970).

Almost surely, 2^12400336131 is an apocalyptic number.

12400336131 is a deficient number, since it is larger than the sum of its proper divisors (4143727629).

12400336131 is a wasteful number, since it uses less digits than its factorization.

12400336131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570565.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 12400336131 its reverse (13163300421), we get a palindrome (25563636552).

The spelling of 12400336131 in words is "twelve billion, four hundred million, three hundred thirty-six thousand, one hundred thirty-one".