3131144330 has 96 divisors (see below), whose sum is σ = 6358518144. Its totient is φ = 1107292032.

The previous prime is 3131144327. The next prime is 3131144339. The reversal of 3131144330 is 334411313.

It is a super-2 number, since 2×3131144330² = 19608129630582297800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 3131144296 and 3131144305.

It is not an unprimeable number, because it can be changed into a prime (3131144339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3569852 + ... + 3570728.

It is an arithmetic number, because the mean of its divisors is an integer number (66234564).

Almost surely, 2^3131144330 is an apocalyptic number.

3131144330 is an abundant number, since it is smaller than the sum of its proper divisors (3227373814).

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

3131144330 is a wasteful number, since it uses less digits than its factorization.

3131144330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3131144330 is about 55956.6290085455. The cubic root of 3131144330 is about 1462.9664353912.

Adding to 3131144330 its reverse (334411313), we get a palindrome (3465555643).

The spelling of 3131144330 in words is "three billion, one hundred thirty-one million, one hundred forty-four thousand, three hundred thirty".