13381420249 has 2 divisors, whose sum is σ = 13381420250. Its totient is φ = 13381420248.

The previous prime is 13381420237. The next prime is 13381420253. The reversal of 13381420249 is 94202418331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11406240000 + 1975180249 = 106800^2 + 44443^2 .

It is a cyclic number.

It is not a de Polignac number, because 13381420249 - 2¹¹ = 13381418201 is a prime.

It is not a weakly prime, because it can be changed into another prime (13381420229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6690710124 + 6690710125.

It is an arithmetic number, because the mean of its divisors is an integer number (6690710125).

Almost surely, 2^13381420249 is an apocalyptic number.

It is an amenable number.

13381420249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13381420249 is an equidigital number, since it uses as much as digits as its factorization.

13381420249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 13381420249 in words is "thirteen billion, three hundred eighty-one million, four hundred twenty thousand, two hundred forty-nine".