331113389 has 4 divisors (see below), whose sum is σ = 331158240. Its totient is φ = 331068540.

The previous prime is 331113347. The next prime is 331113413. The reversal of 331113389 is 983311133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 983311133 = 7 ⋅140473019.

It is a cyclic number.

It is not a de Polignac number, because 331113389 - 2¹² = 331109293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331113989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8447 + ... + 27084.

It is an arithmetic number, because the mean of its divisors is an integer number (82789560).

Almost surely, 2^331113389 is an apocalyptic number.

It is an amenable number.

331113389 is a deficient number, since it is larger than the sum of its proper divisors (44851).

331113389 is an equidigital number, since it uses as much as digits as its factorization.

331113389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44850.

The product of its digits is 5832, while the sum is 32.

The square root of 331113389 is about 18196.5213433777. The cubic root of 331113389 is about 691.8186212294.

The spelling of 331113389 in words is "three hundred thirty-one million, one hundred thirteen thousand, three hundred eighty-nine".