1313289233 has 2 divisors, whose sum is σ = 1313289234. Its totient is φ = 1313289232.

The previous prime is 1313289227. The next prime is 1313289247. The reversal of 1313289233 is 3329823131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 763527424 + 549761809 = 27632^2 + 23447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313289233 - 2¹⁶ = 1313223697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313289193 and 1313289202.

It is not a weakly prime, because it can be changed into another prime (1313289223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656644616 + 656644617.

It is an arithmetic number, because the mean of its divisors is an integer number (656644617).

Almost surely, 2^1313289233 is an apocalyptic number.

It is an amenable number.

1313289233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313289233 is an equidigital number, since it uses as much as digits as its factorization.

1313289233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 35.

The square root of 1313289233 is about 36239.3326787346. The cubic root of 1313289233 is about 1095.0991988416.

The spelling of 1313289233 in words is "one billion, three hundred thirteen million, two hundred eighty-nine thousand, two hundred thirty-three".