11348599921 has 2 divisors, whose sum is σ = 11348599922. Its totient is φ = 11348599920.

The previous prime is 11348599903. The next prime is 11348599937. The reversal of 11348599921 is 12999584311.

11348599921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7037364321 + 4311235600 = 83889^2 + 65660^2 .

It is a cyclic number.

It is not a de Polignac number, because 11348599921 - 2⁷ = 11348599793 is a prime.

It is not a weakly prime, because it can be changed into another prime (11348599991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5674299960 + 5674299961.

It is an arithmetic number, because the mean of its divisors is an integer number (5674299961).

Almost surely, 2^11348599921 is an apocalyptic number.

It is an amenable number.

11348599921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11348599921 is an equidigital number, since it uses as much as digits as its factorization.

11348599921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 52.

The spelling of 11348599921 in words is "eleven billion, three hundred forty-eight million, five hundred ninety-nine thousand, nine hundred twenty-one".