311220303023 has 32 divisors (see below), whose sum is σ = 369323919360. Its totient is φ = 256598496000.

The previous prime is 311220303013. The next prime is 311220303047. The reversal of 311220303023 is 320303022113.

It is not a de Polignac number, because 311220303023 - 2⁴ = 311220303007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311220302986 and 311220303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311220303013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65503898 + ... + 65508648.

It is an arithmetic number, because the mean of its divisors is an integer number (11541372480).

Almost surely, 2^311220303023 is an apocalyptic number.

311220303023 is a deficient number, since it is larger than the sum of its proper divisors (58103616337).

311220303023 is a wasteful number, since it uses less digits than its factorization.

311220303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 311220303023 its reverse (320303022113), we get a palindrome (631523325136).

The spelling of 311220303023 in words is "three hundred eleven billion, two hundred twenty million, three hundred three thousand, twenty-three".