40440124131 has 64 divisors (see below), whose sum is σ = 63663667200. Its totient is φ = 22594611200.

The previous prime is 40440124111. The next prime is 40440124159. The reversal of 40440124131 is 13142104404.

It is a cyclic number.

It is not a de Polignac number, because 40440124131 - 2¹¹ = 40440122083 is a prime.

It is a super-2 number, since 2×40440124131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40440124111) 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 63 ways as a sum of consecutive naturals, for example, 1833175 + ... + 1855103.

It is an arithmetic number, because the mean of its divisors is an integer number (994744800).

Almost surely, 2^40440124131 is an apocalyptic number.

40440124131 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40440124131 is a deficient number, since it is larger than the sum of its proper divisors (23223543069).

40440124131 is a wasteful number, since it uses less digits than its factorization.

40440124131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22060.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40440124131 its reverse (13142104404), we get a palindrome (53582228535).

The spelling of 40440124131 in words is "forty billion, four hundred forty million, one hundred twenty-four thousand, one hundred thirty-one".