40131023511 has 4 divisors (see below), whose sum is σ = 53508031352. Its totient is φ = 26754015672.

The previous prime is 40131023503. The next prime is 40131023533. The reversal of 40131023511 is 11532013104.

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

It is not a de Polignac number, because 40131023511 - 2³ = 40131023503 is a prime.

It is a super-2 number, since 2×40131023511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131023591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6688503916 + ... + 6688503921.

It is an arithmetic number, because the mean of its divisors is an integer number (13377007838).

Almost surely, 2^40131023511 is an apocalyptic number.

40131023511 is a deficient number, since it is larger than the sum of its proper divisors (13377007841).

40131023511 is a wasteful number, since it uses less digits than its factorization.

40131023511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13377007840.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 40131023511 its reverse (11532013104), we get a palindrome (51663036615).

The spelling of 40131023511 in words is "forty billion, one hundred thirty-one million, twenty-three thousand, five hundred eleven".