311323233321 has 8 divisors (see below), whose sum is σ = 461219604960. Its totient is φ = 207548822196.

The previous prime is 311323233301. The next prime is 311323233323. The reversal of 311323233321 is 123332323113.

311323233321 is a `hidden beast` number, since 3 + 1 + 1 + 3 + 2 + 323 + 332 + 1 = 666.

It is not a de Polignac number, because 311323233321 - 2³³ = 302733298729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11530490123 = 311323233321 / (3 + 1 + 1 + 3 + 2 + 3 + 2 + 3 + 3 + 3 + 2 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311323233323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5765245035 + ... + 5765245088.

It is an arithmetic number, because the mean of its divisors is an integer number (57652450620).

Almost surely, 2^311323233321 is an apocalyptic number.

It is an amenable number.

311323233321 is a deficient number, since it is larger than the sum of its proper divisors (149896371639).

311323233321 is a wasteful number, since it uses less digits than its factorization.

311323233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530490132 (or 11530490126 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 311323233321 its reverse (123332323113), we get a palindrome (434655556434).

It can be divided in two parts, 311323 and 233321, that added together give a square (544644 = 738²).

The spelling of 311323233321 in words is "three hundred eleven billion, three hundred twenty-three million, two hundred thirty-three thousand, three hundred twenty-one".