331211013 has 32 divisors (see below), whose sum is σ = 520058880. Its totient is φ = 183539520.

The previous prime is 331210993. The next prime is 331211033. The reversal of 331211013 is 310112133.

It is an interprime number because it is at equal distance from previous prime (331210993) and next prime (331211033).

It is not a de Polignac number, because 331211013 - 2⁸ = 331210757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331210983 and 331211001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331211033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340618 + ... + 341588.

It is an arithmetic number, because the mean of its divisors is an integer number (16251840).

Almost surely, 2^331211013 is an apocalyptic number.

It is an amenable number.

331211013 is a deficient number, since it is larger than the sum of its proper divisors (188847867).

331211013 is a wasteful number, since it uses less digits than its factorization.

331211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 331211013 is about 18199.2036364232. The cubic root of 331211013 is about 691.8866054576.

Adding to 331211013 its reverse (310112133), we get a palindrome (641323146).

The spelling of 331211013 in words is "three hundred thirty-one million, two hundred eleven thousand, thirteen".