40113131240 has 64 divisors (see below), whose sum is σ = 111082527360. Its totient is φ = 12695143680.

The previous prime is 40113131237. The next prime is 40113131257. The reversal of 40113131240 is 4213131104.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5506406 + ... + 5513685.

It is an arithmetic number, because the mean of its divisors is an integer number (1735664490).

Almost surely, 2^40113131240 is an apocalyptic number.

40113131240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40113131240 is an abundant number, since it is smaller than the sum of its proper divisors (70969396120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40113131240 is a wasteful number, since it uses less digits than its factorization.

40113131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020122 (or 11020118 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 40113131240 its reverse (4213131104), we get a palindrome (44326262344).

The spelling of 40113131240 in words is "forty billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred forty".