331240113 has 12 divisors (see below), whose sum is σ = 479692980. Its totient is φ = 220256736.

The previous prime is 331240103. The next prime is 331240123. The reversal of 331240113 is 311042133.

It is an interprime number because it is at equal distance from previous prime (331240103) and next prime (331240123).

It can be written as a sum of positive squares in 2 ways, for example, as 21233664 + 310006449 = 4608^2 + 17607^2 .

It is not a de Polignac number, because 331240113 - 2²⁵ = 297685681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331240103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43806 + ... + 50807.

It is an arithmetic number, because the mean of its divisors is an integer number (39974415).

Almost surely, 2^331240113 is an apocalyptic number.

It is an amenable number.

331240113 is a deficient number, since it is larger than the sum of its proper divisors (148452867).

331240113 is a wasteful number, since it uses less digits than its factorization.

331240113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95008 (or 95005 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 331240113 is about 18200.0031043953. The cubic root of 331240113 is about 691.9068677776.

Adding to 331240113 its reverse (311042133), we get a palindrome (642282246).

The spelling of 331240113 in words is "three hundred thirty-one million, two hundred forty thousand, one hundred thirteen".