13201511 has 2 divisors, whose sum is σ = 13201512. Its totient is φ = 13201510.

The previous prime is 13201499. The next prime is 13201541. The reversal of 13201511 is 11510231.

13201511 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 an emirp because it is prime and its reverse (11510231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13201511 - 2¹⁰ = 13200487 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13201541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6600755 + 6600756.

It is an arithmetic number, because the mean of its divisors is an integer number (6600756).

Almost surely, 2^13201511 is an apocalyptic number.

13201511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13201511 is an equidigital number, since it uses as much as digits as its factorization.

13201511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 13201511 is about 3633.3883634976. The cubic root of 13201511 is about 236.3421674108.

Adding to 13201511 its reverse (11510231), we get a palindrome (24711742).

The spelling of 13201511 in words is "thirteen million, two hundred one thousand, five hundred eleven".