3031313240 has 16 divisors (see below), whose sum is σ = 6820454880. Its totient is φ = 1212525280.

The previous prime is 3031313237. The next prime is 3031313287. The reversal of 3031313240 is 423131303.

3031313240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37891376 + ... + 37891455.

It is an arithmetic number, because the mean of its divisors is an integer number (426278430).

Almost surely, 2^3031313240 is an apocalyptic number.

It is an amenable number.

3031313240 is an abundant number, since it is smaller than the sum of its proper divisors (3789141640).

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

3031313240 is a wasteful number, since it uses less digits than its factorization.

3031313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75782842 (or 75782838 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3031313240 is about 55057.3631769630. The cubic root of 3031313240 is about 1447.2501573815.

Adding to 3031313240 its reverse (423131303), we get a palindrome (3454444543).

The spelling of 3031313240 in words is "three billion, thirty-one million, three hundred thirteen thousand, two hundred forty".