13203602149 has 2 divisors, whose sum is σ = 13203602150. Its totient is φ = 13203602148.

The previous prime is 13203602147. The next prime is 13203602197. The reversal of 13203602149 is 94120630231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7559085249 + 5644516900 = 86943^2 + 75130^2 .

It is a cyclic number.

It is not a de Polignac number, because 13203602149 - 2¹ = 13203602147 is a prime.

Together with 13203602147, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13203602149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13203602147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6601801074 + 6601801075.

It is an arithmetic number, because the mean of its divisors is an integer number (6601801075).

Almost surely, 2^13203602149 is an apocalyptic number.

It is an amenable number.

13203602149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13203602149 is an equidigital number, since it uses as much as digits as its factorization.

13203602149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 13203602149 in words is "thirteen billion, two hundred three million, six hundred two thousand, one hundred forty-nine".