1530315331 has 2 divisors, whose sum is σ = 1530315332. Its totient is φ = 1530315330.

The previous prime is 1530315323. The next prime is 1530315379. The reversal of 1530315331 is 1335130351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1530315331 - 2³ = 1530315323 is a prime.

It is a super-2 number, since 2×1530315331² = 4683730024587279122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1530315296 and 1530315305.

It is not a weakly prime, because it can be changed into another prime (1530315431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765157665 + 765157666.

It is an arithmetic number, because the mean of its divisors is an integer number (765157666).

Almost surely, 2^1530315331 is an apocalyptic number.

1530315331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530315331 is an equidigital number, since it uses as much as digits as its factorization.

1530315331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 1530315331 is about 39119.2450208334. The cubic root of 1530315331 is about 1152.3745092619.

Adding to 1530315331 its reverse (1335130351), we get a palindrome (2865445682).

The spelling of 1530315331 in words is "one billion, five hundred thirty million, three hundred fifteen thousand, three hundred thirty-one".