31034240040 has 32 divisors (see below), whose sum is σ = 93102720480. Its totient is φ = 8275797312.

The previous prime is 31034240033. The next prime is 31034240053. The reversal of 31034240040 is 4004243013.

It is a junction number, because it is equal to n+sod(n) for n = 31034239989 and 31034240016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129309214 + ... + 129309453.

It is an arithmetic number, because the mean of its divisors is an integer number (2909460015).

Almost surely, 2^31034240040 is an apocalyptic number.

31034240040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31034240040 is an abundant number, since it is smaller than the sum of its proper divisors (62068480440).

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

31034240040 is a wasteful number, since it uses less digits than its factorization.

31034240040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258618681 (or 258618677 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 31034240040 its reverse (4004243013), we get a palindrome (35038483053).

The spelling of 31034240040 in words is "thirty-one billion, thirty-four million, two hundred forty thousand, forty".