311133211323 has 16 divisors (see below), whose sum is σ = 452596294656. Its totient is φ = 188549375840.

The previous prime is 311133211309. The next prime is 311133211357. The reversal of 311133211323 is 323112331113.

It is a cyclic number.

It is not a de Polignac number, because 311133211323 - 2³⁷ = 173694257851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311133211293 and 311133211302.

It is not an unprimeable number, because it can be changed into a prime (311133211373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9636 + ... + 788897.

It is an arithmetic number, because the mean of its divisors is an integer number (28287268416).

Almost surely, 2^311133211323 is an apocalyptic number.

311133211323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

311133211323 is a deficient number, since it is larger than the sum of its proper divisors (141463083333).

311133211323 is a wasteful number, since it uses less digits than its factorization.

311133211323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810354.

The product of its digits is 972, while the sum is 24.

Adding to 311133211323 its reverse (323112331113), we get a palindrome (634245542436).

The spelling of 311133211323 in words is "three hundred eleven billion, one hundred thirty-three million, two hundred eleven thousand, three hundred twenty-three".