31040112140 has 24 divisors (see below), whose sum is σ = 67286954112. Its totient is φ = 12015527040.

The previous prime is 31040112127. The next prime is 31040112149. The reversal of 31040112140 is 4121104013.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31040112149) 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, 25031729 + ... + 25032968.

It is an arithmetic number, because the mean of its divisors is an integer number (2803623088).

Almost surely, 2^31040112140 is an apocalyptic number.

It is an amenable number.

31040112140 is an abundant number, since it is smaller than the sum of its proper divisors (36246841972).

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

31040112140 is a wasteful number, since it uses less digits than its factorization.

31040112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50064737 (or 50064735 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31040112140 its reverse (4121104013), we get a palindrome (35161216153).

The spelling of 31040112140 in words is "thirty-one billion, forty million, one hundred twelve thousand, one hundred forty".