13521113 has 2 divisors, whose sum is σ = 13521114. Its totient is φ = 13521112.

The previous prime is 13521107. The next prime is 13521127. The reversal of 13521113 is 31112531.

13521113 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 can be written as a sum of positive squares in only one way, i.e., 13520329 + 784 = 3677^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 13521113 - 2⁴ = 13521097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13521091 and 13521100.

It is not a weakly prime, because it can be changed into another prime (13521713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760556 + 6760557.

It is an arithmetic number, because the mean of its divisors is an integer number (6760557).

Almost surely, 2^13521113 is an apocalyptic number.

It is an amenable number.

13521113 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521113 is an equidigital number, since it uses as much as digits as its factorization.

13521113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 17.

The square root of 13521113 is about 3677.1066071029. The cubic root of 13521113 is about 238.2342220249.

Adding to 13521113 its reverse (31112531), we get a palindrome (44633644).

The spelling of 13521113 in words is "thirteen million, five hundred twenty-one thousand, one hundred thirteen".