12513331 has 2 divisors, whose sum is σ = 12513332. Its totient is φ = 12513330.

The previous prime is 12513317. The next prime is 12513341. The reversal of 12513331 is 13331521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12513331 - 2⁵ = 12513299 is a prime.

It is a super-2 number, since 2×12513331² = 313166905431122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12513299 and 12513308.

It is not a weakly prime, because it can be changed into another prime (12513341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256665 + 6256666.

It is an arithmetic number, because the mean of its divisors is an integer number (6256666).

Almost surely, 2^12513331 is an apocalyptic number.

12513331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513331 is an equidigital number, since it uses as much as digits as its factorization.

12513331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 19.

The square root of 12513331 is about 3537.4186916451. The cubic root of 12513331 is about 232.1619150632.

Adding to 12513331 its reverse (13331521), we get a palindrome (25844852).

It can be divided in two parts, 125 and 13331, that added together give a square (13456 = 116²).

The spelling of 12513331 in words is "twelve million, five hundred thirteen thousand, three hundred thirty-one".