1313111323 has 2 divisors, whose sum is σ = 1313111324. Its totient is φ = 1313111322.

The previous prime is 1313111291. The next prime is 1313111341. The reversal of 1313111323 is 3231113131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1313111323 - 2⁵ = 1313111291 is a prime.

It is a super-2 number, since 2×1313111323² = 3448522693181620658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1313111323.

It is not a weakly prime, because it can be changed into another prime (1313111363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656555661 + 656555662.

It is an arithmetic number, because the mean of its divisors is an integer number (656555662).

Almost surely, 2^1313111323 is an apocalyptic number.

1313111323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313111323 is an equidigital number, since it uses as much as digits as its factorization.

1313111323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 19.

The square root of 1313111323 is about 36236.8779422290. The cubic root of 1313111323 is about 1095.0497459382.

Adding to 1313111323 its reverse (3231113131), we get a palindrome (4544224454).

The spelling of 1313111323 in words is "one billion, three hundred thirteen million, one hundred eleven thousand, three hundred twenty-three".