1313020323 has 12 divisors (see below), whose sum is σ = 1897185888. Its totient is φ = 875069520.

The previous prime is 1313020321. The next prime is 1313020363. The reversal of 1313020323 is 3230203131.

It is not a de Polignac number, because 1313020323 - 2¹ = 1313020321 is a prime.

It is a super-2 number, since 2×1313020323² = 3448044737222048658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313020296 and 1313020305.

It is not an unprimeable number, because it can be changed into a prime (1313020321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9253 + ... + 52073.

It is an arithmetic number, because the mean of its divisors is an integer number (158098824).

Almost surely, 2^1313020323 is an apocalyptic number.

1313020323 is a deficient number, since it is larger than the sum of its proper divisors (584165565).

1313020323 is a wasteful number, since it uses less digits than its factorization.

1313020323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46234 (or 46231 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1313020323 is about 36235.6222935387. The cubic root of 1313020323 is about 1095.0244493196.

Adding to 1313020323 its reverse (3230203131), we get a palindrome (4543223454).

The spelling of 1313020323 in words is "one billion, three hundred thirteen million, twenty thousand, three hundred twenty-three".