40131330131 has 4 divisors (see below), whose sum is σ = 40132661712. Its totient is φ = 40129998552.

The previous prime is 40131330079. The next prime is 40131330133. The reversal of 40131330131 is 13103313104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40131330131 is a prime.

It is a super-2 number, since 2×40131330131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40131330133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619511 + ... + 681216.

It is an arithmetic number, because the mean of its divisors is an integer number (10033165428).

Almost surely, 2^40131330131 is an apocalyptic number.

40131330131 is a deficient number, since it is larger than the sum of its proper divisors (1331581).

40131330131 is a wasteful number, since it uses less digits than its factorization.

40131330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331580.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 40131330131 its reverse (13103313104), we get a palindrome (53234643235).

The spelling of 40131330131 in words is "forty billion, one hundred thirty-one million, three hundred thirty thousand, one hundred thirty-one".