311133101123 has 6 divisors (see below), whose sum is σ = 336907441044. Its totient is φ = 287199785496.

The previous prime is 311133101117. The next prime is 311133101131. The reversal of 311133101123 is 321101331113.

It is not a de Polignac number, because 311133101123 - 2⁸ = 311133100867 is a prime.

It is a super-2 number, since 2×311133101123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311133101095 and 311133101104.

It is not an unprimeable number, because it can be changed into a prime (311133101173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920511965 + ... + 920512302.

It is an arithmetic number, because the mean of its divisors is an integer number (56151240174).

Almost surely, 2^311133101123 is an apocalyptic number.

311133101123 is a deficient number, since it is larger than the sum of its proper divisors (25774339921).

311133101123 is a wasteful number, since it uses less digits than its factorization.

311133101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841024293 (or 1841024280 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 311133101123 its reverse (321101331113), we get a palindrome (632234432236).

The spelling of 311133101123 in words is "three hundred eleven billion, one hundred thirty-three million, one hundred one thousand, one hundred twenty-three".