311212202023 has 16 divisors (see below), whose sum is σ = 330996775680. Its totient is φ = 291594441600.

The previous prime is 311212202017. The next prime is 311212202027. The reversal of 311212202023 is 320202212113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311212202023 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 (311212202027) 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, 3848238 + ... + 3928276.

It is an arithmetic number, because the mean of its divisors is an integer number (20687298480).

Almost surely, 2^311212202023 is an apocalyptic number.

311212202023 is a deficient number, since it is larger than the sum of its proper divisors (19784573657).

311212202023 is a wasteful number, since it uses less digits than its factorization.

311212202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81078.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 311212202023 its reverse (320202212113), we get a palindrome (631414414136).

The spelling of 311212202023 in words is "three hundred eleven billion, two hundred twelve million, two hundred two thousand, twenty-three".