40013400323131 has 4 divisors (see below), whose sum is σ = 40057516531672. Its totient is φ = 39969284114592.

The previous prime is 40013400323047. The next prime is 40013400323153. The reversal of 40013400323131 is 13132300431004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40013400323131 - 2⁷ = 40013400323003 is a prime.

It is a super-2 number, since 2×40013400323131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40013400323096 and 40013400323105.

It is not an unprimeable number, because it can be changed into a prime (40013400923131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22058102910 + ... + 22058104723.

It is an arithmetic number, because the mean of its divisors is an integer number (10014379132918).

Almost surely, 2^{40013400323131} is an apocalyptic number.

40013400323131 is a deficient number, since it is larger than the sum of its proper divisors (44116208541).

40013400323131 is an equidigital number, since it uses as much as digits as its factorization.

40013400323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44116208540.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 40013400323131 its reverse (13132300431004), we get a palindrome (53145700754135).

The spelling of 40013400323131 in words is "forty trillion, thirteen billion, four hundred million, three hundred twenty-three thousand, one hundred thirty-one".