311113323133 has 2 divisors, whose sum is σ = 311113323134. Its totient is φ = 311113323132.

The previous prime is 311113323097. The next prime is 311113323163. The reversal of 311113323133 is 331323311113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259485303609 + 51628019524 = 509397^2 + 227218^2 .

It is a cyclic number.

It is not a de Polignac number, because 311113323133 - 2⁹ = 311113322621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311113323098 and 311113323107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311113323163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155556661566 + 155556661567.

It is an arithmetic number, because the mean of its divisors is an integer number (155556661567).

Almost surely, 2^311113323133 is an apocalyptic number.

It is an amenable number.

311113323133 is a deficient number, since it is larger than the sum of its proper divisors (1).

311113323133 is an equidigital number, since it uses as much as digits as its factorization.

311113323133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 25.

Adding to 311113323133 its reverse (331323311113), we get a palindrome (642436634246).

The spelling of 311113323133 in words is "three hundred eleven billion, one hundred thirteen million, three hundred twenty-three thousand, one hundred thirty-three".