331211232013 has 16 divisors (see below), whose sum is σ = 342866684160. Its totient is φ = 319738535424.

The previous prime is 331211231977. The next prime is 331211232017. The reversal of 331211232013 is 310232112133.

It is a cyclic number.

It is not a de Polignac number, because 331211232013 - 2¹³ = 331211223821 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 (331211232017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9715045 + ... + 9749077.

It is an arithmetic number, because the mean of its divisors is an integer number (21429167760).

Almost surely, 2^331211232013 is an apocalyptic number.

It is an amenable number.

331211232013 is a deficient number, since it is larger than the sum of its proper divisors (11655452147).

331211232013 is a wasteful number, since it uses less digits than its factorization.

331211232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36708.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 331211232013 its reverse (310232112133), we get a palindrome (641443344146).

The spelling of 331211232013 in words is "three hundred thirty-one billion, two hundred eleven million, two hundred thirty-two thousand, thirteen".