11361923609 has 4 divisors (see below), whose sum is σ = 11362944720. Its totient is φ = 11360902500.

The previous prime is 11361923581. The next prime is 11361923611. The reversal of 11361923609 is 90632916311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90632916311 = 7 ⋅12947559473.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11361923609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11361923009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493679 + ... + 516180.

It is an arithmetic number, because the mean of its divisors is an integer number (2840736180).

Almost surely, 2^11361923609 is an apocalyptic number.

It is an amenable number.

11361923609 is a deficient number, since it is larger than the sum of its proper divisors (1021111).

11361923609 is a wasteful number, since it uses less digits than its factorization.

11361923609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021110.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 11361923609 in words is "eleven billion, three hundred sixty-one million, nine hundred twenty-three thousand, six hundred nine".