311213013013 has 16 divisors (see below), whose sum is σ = 367689611520. Its totient is φ = 257860195200.

The previous prime is 311213012963. The next prime is 311213013101. The reversal of 311213013013 is 310310312113.

It is a cyclic number.

It is not a de Polignac number, because 311213013013 - 2⁹ = 311213012501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311213013913) 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, 4942873 + ... + 5005438.

It is an arithmetic number, because the mean of its divisors is an integer number (22980600720).

Almost surely, 2^311213013013 is an apocalyptic number.

It is an amenable number.

311213013013 is a deficient number, since it is larger than the sum of its proper divisors (56476598507).

311213013013 is a wasteful number, since it uses less digits than its factorization.

311213013013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948468.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 311213013013 its reverse (310310312113), we get a palindrome (621523325126).

The spelling of 311213013013 in words is "three hundred eleven billion, two hundred thirteen million, thirteen thousand, thirteen".