13130231 has 2 divisors, whose sum is σ = 13130232. Its totient is φ = 13130230.

The previous prime is 13130177. The next prime is 13130233. The reversal of 13130231 is 13203131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13130231 is a prime.

It is a super-2 number, since 2×13130231² = 344805932226722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13130233, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13130233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565115 + 6565116.

It is an arithmetic number, because the mean of its divisors is an integer number (6565116).

Almost surely, 2^13130231 is an apocalyptic number.

13130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13130231 is an equidigital number, since it uses as much as digits as its factorization.

13130231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13130231 is about 3623.5660612165. The cubic root of 13130231 is about 235.9160323230.

Adding to 13130231 its reverse (13203131), we get a palindrome (26333362).

Subtracting 13130231 from its reverse (13203131), we obtain a square (72900 = 270²).

The spelling of 13130231 in words is "thirteen million, one hundred thirty thousand, two hundred thirty-one".