31010034040 has 64 divisors (see below), whose sum is σ = 71088010560. Its totient is φ = 12172339200.

The previous prime is 31010034037. The next prime is 31010034047. The reversal of 31010034040 is 4043001013.

It is a super-2 number, since 2×31010034040² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010034047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422557 + ... + 490483.

It is an arithmetic number, because the mean of its divisors is an integer number (1110750165).

Almost surely, 2^31010034040 is an apocalyptic number.

It is an amenable number.

31010034040 is an abundant number, since it is smaller than the sum of its proper divisors (40077976520).

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

31010034040 is a wasteful number, since it uses less digits than its factorization.

31010034040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68152 (or 68148 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31010034040 its reverse (4043001013), we get a palindrome (35053035053).

The spelling of 31010034040 in words is "thirty-one billion, ten million, thirty-four thousand, forty".