1313230311 has 6 divisors (see below), whose sum is σ = 1896888240. Its totient is φ = 875486868.

The previous prime is 1313230309. The next prime is 1313230393. The reversal of 1313230311 is 1130323131.

It is a happy number.

1313230311 is a `hidden beast` number, since 1 + 31 + 323 + 0 + 311 = 666.

It is not a de Polignac number, because 1313230311 - 2¹ = 1313230309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313230301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72957231 + ... + 72957248.

It is an arithmetic number, because the mean of its divisors is an integer number (316148040).

Almost surely, 2^1313230311 is an apocalyptic number.

1313230311 is a deficient number, since it is larger than the sum of its proper divisors (583657929).

1313230311 is a wasteful number, since it uses less digits than its factorization.

1313230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145914485 (or 145914482 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1313230311 is about 36238.5197131450. The cubic root of 1313230311 is about 1095.0828210328.

Adding to 1313230311 its reverse (1130323131), we get a palindrome (2443553442).

The spelling of 1313230311 in words is "one billion, three hundred thirteen million, two hundred thirty thousand, three hundred eleven".