311345100213 has 24 divisors (see below), whose sum is σ = 483161681952. Its totient is φ = 177816036384.

The previous prime is 311345100167. The next prime is 311345100221. The reversal of 311345100213 is 312001543113.

It is not a de Polignac number, because 311345100213 - 2³⁰ = 310271358389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311345100233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292770 + ... + 841667.

It is an arithmetic number, because the mean of its divisors is an integer number (20131736748).

Almost surely, 2^311345100213 is an apocalyptic number.

It is an amenable number.

311345100213 is a deficient number, since it is larger than the sum of its proper divisors (171816581739).

311345100213 is a wasteful number, since it uses less digits than its factorization.

311345100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136321 (or 1136314 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 311345100213 its reverse (312001543113), we get a palindrome (623346643326).

The spelling of 311345100213 in words is "three hundred eleven billion, three hundred forty-five million, one hundred thousand, two hundred thirteen".