311230223122 has 32 divisors (see below), whose sum is σ = 582449841792. Its totient is φ = 121437408384.

The previous prime is 311230223041. The next prime is 311230223131. The reversal of 311230223122 is 221322032113.

It is a junction number, because it is equal to n+sod(n) for n = 311230223093 and 311230223102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11699428 + ... + 11725999.

It is an arithmetic number, because the mean of its divisors is an integer number (18201557556).

Almost surely, 2^311230223122 is an apocalyptic number.

311230223122 is a deficient number, since it is larger than the sum of its proper divisors (271219618670).

311230223122 is a wasteful number, since it uses less digits than its factorization.

311230223122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23425522.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 311230223122 its reverse (221322032113), we get a palindrome (532552255235).

The spelling of 311230223122 in words is "three hundred eleven billion, two hundred thirty million, two hundred twenty-three thousand, one hundred twenty-two".