331112011213 has 4 divisors (see below), whose sum is σ = 331129907388. Its totient is φ = 331094115040.

The previous prime is 331112011133. The next prime is 331112011247. The reversal of 331112011213 is 312110211133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312110211133 = 7 ⋅44587173019.

It can be written as a sum of positive squares in 2 ways, for example, as 248344748964 + 82767262249 = 498342^2 + 287693^2 .

It is a cyclic number.

It is not a de Polignac number, because 331112011213 - 2²⁵ = 331078456781 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 (331112051213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8920306 + ... + 8957347.

It is an arithmetic number, because the mean of its divisors is an integer number (82782476847).

Almost surely, 2^331112011213 is an apocalyptic number.

It is an amenable number.

331112011213 is a deficient number, since it is larger than the sum of its proper divisors (17896175).

331112011213 is a wasteful number, since it uses less digits than its factorization.

331112011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17896174.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 331112011213 its reverse (312110211133), we get a palindrome (643222222346).

The spelling of 331112011213 in words is "three hundred thirty-one billion, one hundred twelve million, eleven thousand, two hundred thirteen".