331130113 has 4 divisors (see below), whose sum is σ = 333239380. Its totient is φ = 329020848.

The previous prime is 331130101. The next prime is 331130171. The reversal of 331130113 is 311031133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 192432384 + 138697729 = 13872^2 + 11777^2 .

It is a cyclic number.

It is not a de Polignac number, because 331130113 - 2²¹ = 329032961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331130183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054398 + ... + 1054711.

It is an arithmetic number, because the mean of its divisors is an integer number (83309845).

Almost surely, 2^331130113 is an apocalyptic number.

It is an amenable number.

331130113 is a deficient number, since it is larger than the sum of its proper divisors (2109267).

331130113 is a wasteful number, since it uses less digits than its factorization.

331130113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109266.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 331130113 is about 18196.9808759585. The cubic root of 331130113 is about 691.8302685786.

Adding to 331130113 its reverse (311031133), we get a palindrome (642161246).

The spelling of 331130113 in words is "three hundred thirty-one million, one hundred thirty thousand, one hundred thirteen".