13525442111 has 2 divisors, whose sum is σ = 13525442112. Its totient is φ = 13525442110.

The previous prime is 13525442101. The next prime is 13525442129. The reversal of 13525442111 is 11124452531.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11124452531) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13525442111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13525442101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762721055 + 6762721056.

It is an arithmetic number, because the mean of its divisors is an integer number (6762721056).

Almost surely, 2^13525442111 is an apocalyptic number.

13525442111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13525442111 is an equidigital number, since it uses as much as digits as its factorization.

13525442111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4800, while the sum is 29.

Adding to 13525442111 its reverse (11124452531), we get a palindrome (24649894642).

The spelling of 13525442111 in words is "thirteen billion, five hundred twenty-five million, four hundred forty-two thousand, one hundred eleven".