13071131 has 2 divisors, whose sum is σ = 13071132. Its totient is φ = 13071130.

The previous prime is 13071127. The next prime is 13071137. The reversal of 13071131 is 13117031.

It is a weak prime.

It is an emirp because it is prime and its reverse (13117031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13071131 - 2² = 13071127 is a prime.

It is a super-2 number, since 2×13071131² = 341708931238322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13071137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6535565 + 6535566.

It is an arithmetic number, because the mean of its divisors is an integer number (6535566).

Almost surely, 2^13071131 is an apocalyptic number.

13071131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13071131 is an equidigital number, since it uses as much as digits as its factorization.

13071131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 13071131 is about 3615.4019140339. The cubic root of 13071131 is about 235.5615422694.

Adding to 13071131 its reverse (13117031), we get a palindrome (26188162).

The spelling of 13071131 in words is "thirteen million, seventy-one thousand, one hundred thirty-one".