11209372919 has 2 divisors, whose sum is σ = 11209372920. Its totient is φ = 11209372918.

The previous prime is 11209372901. The next prime is 11209372927. The reversal of 11209372919 is 91927390211.

It is a strong prime.

It is an emirp because it is prime and its reverse (91927390211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11209372919 - 2²⁸ = 10940937463 is a prime.

It is a super-2 number, since 2×11209372919² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11209372919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11209372219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604686459 + 5604686460.

It is an arithmetic number, because the mean of its divisors is an integer number (5604686460).

Almost surely, 2^11209372919 is an apocalyptic number.

11209372919 is a deficient number, since it is larger than the sum of its proper divisors (1).

11209372919 is an equidigital number, since it uses as much as digits as its factorization.

11209372919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 44.

The spelling of 11209372919 in words is "eleven billion, two hundred nine million, three hundred seventy-two thousand, nine hundred nineteen".