40131111120 has 40 divisors (see below), whose sum is σ = 124406445216. Its totient is φ = 10701629568.

The previous prime is 40131111113. The next prime is 40131111121. The reversal of 40131111120 is 2111113104.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×40131111120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40131111120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40131111121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83606242 + ... + 83606721.

Almost surely, 2^40131111120 is an apocalyptic number.

40131111120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40131111120 is an abundant number, since it is smaller than the sum of its proper divisors (84275334096).

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

40131111120 is a wasteful number, since it uses less digits than its factorization.

40131111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167212979 (or 167212973 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 40131111120 its reverse (2111113104), we get a palindrome (42242224224).

The spelling of 40131111120 in words is "forty billion, one hundred thirty-one million, one hundred eleven thousand, one hundred twenty".