311030023213 has 16 divisors (see below), whose sum is σ = 382824695680. Its totient is φ = 246077787456.

The previous prime is 311030023211. The next prime is 311030023253. The reversal of 311030023213 is 312320030113.

It is a cyclic number.

It is not a de Polignac number, because 311030023213 - 2¹ = 311030023211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311030023211) 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 15 ways as a sum of consecutive naturals, for example, 2134306 + ... + 2275372.

It is an arithmetic number, because the mean of its divisors is an integer number (23926543480).

Almost surely, 2^311030023213 is an apocalyptic number.

It is an amenable number.

311030023213 is a deficient number, since it is larger than the sum of its proper divisors (71794672467).

311030023213 is a wasteful number, since it uses less digits than its factorization.

311030023213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165316.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311030023213 its reverse (312320030113), we get a palindrome (623350053326).

The spelling of 311030023213 in words is "three hundred eleven billion, thirty million, twenty-three thousand, two hundred thirteen".