13129111 has 2 divisors, whose sum is σ = 13129112. Its totient is φ = 13129110.

The previous prime is 13129099. The next prime is 13129201. The reversal of 13129111 is 11192131.

13129111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13129111 - 2¹¹ = 13127063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6564555 + 6564556.

It is an arithmetic number, because the mean of its divisors is an integer number (6564556).

Almost surely, 2^13129111 is an apocalyptic number.

13129111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13129111 is an equidigital number, since it uses as much as digits as its factorization.

13129111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54, while the sum is 19.

The square root of 13129111 is about 3623.4115140293. The cubic root of 13129111 is about 235.9093243052.

The spelling of 13129111 in words is "thirteen million, one hundred twenty-nine thousand, one hundred eleven".