311120223133331 has 4 divisors (see below), whose sum is σ = 311131019574792. Its totient is φ = 311109426691872.

The previous prime is 311120223133303. The next prime is 311120223133387. The reversal of 311120223133331 is 133331322021113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311120223133331 - 2³⁰ = 311119149391507 is a prime.

It is a super-2 number, since 2×311120223133331² (a number of 30 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 = 311120223133294 and 311120223133303.

It is not an unprimeable number, because it can be changed into a prime (311120223133931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5398177505 + ... + 5398235138.

It is an arithmetic number, because the mean of its divisors is an integer number (77782754893698).

Almost surely, 2^{311120223133331} is an apocalyptic number.

311120223133331 is a deficient number, since it is larger than the sum of its proper divisors (10796441461).

311120223133331 is a wasteful number, since it uses less digits than its factorization.

311120223133331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10796441460.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 311120223133331 its reverse (133331322021113), we get a palindrome (444451545154444).

The spelling of 311120223133331 in words is "three hundred eleven trillion, one hundred twenty billion, two hundred twenty-three million, one hundred thirty-three thousand, three hundred thirty-one".