1513230331 has 2 divisors, whose sum is σ = 1513230332. Its totient is φ = 1513230330.

The previous prime is 1513230293. The next prime is 1513230451. The reversal of 1513230331 is 1330323151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1513230331 - 2²⁷ = 1379012603 is a prime.

It is a super-2 number, since 2×1513230331² = 4579732069316739122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1513230731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756615165 + 756615166.

It is an arithmetic number, because the mean of its divisors is an integer number (756615166).

Almost surely, 2^1513230331 is an apocalyptic number.

1513230331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513230331 is an equidigital number, since it uses as much as digits as its factorization.

1513230331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 1513230331 is about 38900.2613230297. The cubic root of 1513230331 is about 1148.0699398826.

Adding to 1513230331 its reverse (1330323151), we get a palindrome (2843553482).

The spelling of 1513230331 in words is "one billion, five hundred thirteen million, two hundred thirty thousand, three hundred thirty-one".