11397903409 has 2 divisors, whose sum is σ = 11397903410. Its totient is φ = 11397903408.

The previous prime is 11397903397. The next prime is 11397903457. The reversal of 11397903409 is 90430979311.

11397903409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11315002384 + 82901025 = 106372^2 + 9105^2 .

It is a cyclic number.

It is not a de Polignac number, because 11397903409 - 2¹³ = 11397895217 is a prime.

It is not a weakly prime, because it can be changed into another prime (11397903709) 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, 5698951704 + 5698951705.

It is an arithmetic number, because the mean of its divisors is an integer number (5698951705).

Almost surely, 2^11397903409 is an apocalyptic number.

It is an amenable number.

11397903409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11397903409 is an equidigital number, since it uses as much as digits as its factorization.

11397903409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 46.

The spelling of 11397903409 in words is "eleven billion, three hundred ninety-seven million, nine hundred three thousand, four hundred nine".