313331022133 has 4 divisors (see below), whose sum is σ = 314016648460. Its totient is φ = 312645395808.

The previous prime is 313331022127. The next prime is 313331022139. The reversal of 313331022133 is 331220133313.

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

It is an interprime number because it is at equal distance from previous prime (313331022127) and next prime (313331022139).

It can be written as a sum of positive squares in 2 ways, for example, as 103051914289 + 210279107844 = 321017^2 + 458562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313331022133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313331022098 and 313331022107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313331022139) 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, 342812478 + ... + 342813391.

It is an arithmetic number, because the mean of its divisors is an integer number (78504162115).

Almost surely, 2^313331022133 is an apocalyptic number.

It is an amenable number.

313331022133 is a deficient number, since it is larger than the sum of its proper divisors (685626327).

313331022133 is an equidigital number, since it uses as much as digits as its factorization.

313331022133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685626326.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313331022133 its reverse (331220133313), we get a palindrome (644551155446).

The spelling of 313331022133 in words is "three hundred thirteen billion, three hundred thirty-one million, twenty-two thousand, one hundred thirty-three".