3131333040 has 80 divisors (see below), whose sum is σ = 10589607936. Its totient is φ = 759110400.

The previous prime is 3131333027. The next prime is 3131333041. The reversal of 3131333040 is 403331313.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3131332998 and 3131333016.

It is not an unprimeable number, because it can be changed into a prime (3131333041) 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, 590416 + ... + 595695.

Almost surely, 2^3131333040 is an apocalyptic number.

3131333040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3131333040 is an abundant number, since it is smaller than the sum of its proper divisors (7458274896).

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

3131333040 is a wasteful number, since it uses less digits than its factorization.

3131333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186138 (or 1186132 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3131333040 is about 55958.3151997985. The cubic root of 3131333040 is about 1462.9958251628.

Adding to 3131333040 its reverse (403331313), we get a palindrome (3534664353).

The spelling of 3131333040 in words is "three billion, one hundred thirty-one million, three hundred thirty-three thousand, forty".