113221533409 has 2 divisors, whose sum is σ = 113221533410. Its totient is φ = 113221533408.

The previous prime is 113221533379. The next prime is 113221533427. The reversal of 113221533409 is 904335122311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109306278225 + 3915255184 = 330615^2 + 62572^2 .

It is an emirp because it is prime and its reverse (904335122311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113221533409 - 2³³ = 104631598817 is a prime.

It is a super-2 number, since 2×113221533409² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113221533479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610766704 + 56610766705.

It is an arithmetic number, because the mean of its divisors is an integer number (56610766705).

Almost surely, 2^113221533409 is an apocalyptic number.

It is an amenable number.

113221533409 is a deficient number, since it is larger than the sum of its proper divisors (1).

113221533409 is an equidigital number, since it uses as much as digits as its factorization.

113221533409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 113221533409 in words is "one hundred thirteen billion, two hundred twenty-one million, five hundred thirty-three thousand, four hundred nine".