13243031 has 2 divisors, whose sum is σ = 13243032. Its totient is φ = 13243030.

The previous prime is 13243001. The next prime is 13243033. The reversal of 13243031 is 13034231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13243031 - 2⁶ = 13242967 is a prime.

It is a super-2 number, since 2×13243031² = 350755740133922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13243033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621515 + 6621516.

It is an arithmetic number, because the mean of its divisors is an integer number (6621516).

Almost surely, 2^13243031 is an apocalyptic number.

13243031 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243031 is an equidigital number, since it uses as much as digits as its factorization.

13243031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13243031 is about 3639.0975529656. The cubic root of 13243031 is about 236.5896809265.

Adding to 13243031 its reverse (13034231), we get a palindrome (26277262).

The spelling of 13243031 in words is "thirteen million, two hundred forty-three thousand, thirty-one".