11345923409 has 2 divisors, whose sum is σ = 11345923410. Its totient is φ = 11345923408.

The previous prime is 11345923363. The next prime is 11345923429. The reversal of 11345923409 is 90432954311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8475964225 + 2869959184 = 92065^2 + 53572^2 .

It is a cyclic number.

It is not a de Polignac number, because 11345923409 - 2³² = 7050956113 is a prime.

It is not a weakly prime, because it can be changed into another prime (11345923429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5672961704 + 5672961705.

It is an arithmetic number, because the mean of its divisors is an integer number (5672961705).

Almost surely, 2^11345923409 is an apocalyptic number.

It is an amenable number.

11345923409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11345923409 is an equidigital number, since it uses as much as digits as its factorization.

11345923409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 11345923409 in words is "eleven billion, three hundred forty-five million, nine hundred twenty-three thousand, four hundred nine".