11899147361 has 2 divisors, whose sum is σ = 11899147362. Its totient is φ = 11899147360.

The previous prime is 11899147327. The next prime is 11899147363. The reversal of 11899147361 is 16374199811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11805909025 + 93238336 = 108655^2 + 9656^2 .

It is a cyclic number.

It is not a de Polignac number, because 11899147361 - 2²⁶ = 11832038497 is a prime.

Together with 11899147363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11899147363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5949573680 + 5949573681.

It is an arithmetic number, because the mean of its divisors is an integer number (5949573681).

Almost surely, 2^11899147361 is an apocalyptic number.

It is an amenable number.

11899147361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11899147361 is an equidigital number, since it uses as much as digits as its factorization.

11899147361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 50.

The spelling of 11899147361 in words is "eleven billion, eight hundred ninety-nine million, one hundred forty-seven thousand, three hundred sixty-one".