11722125243 has 18 divisors (see below), whose sum is σ = 16607480596. Its totient is φ = 7353058688.

The previous prime is 11722125241. The next prime is 11722125257. The reversal of 11722125243 is 34252122711.

It is not a de Polignac number, because 11722125243 - 2¹ = 11722125241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11722125243.

It is not an unprimeable number, because it can be changed into a prime (11722125241) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3186121 + ... + 3189797.

Almost surely, 2^11722125243 is an apocalyptic number.

11722125243 is a deficient number, since it is larger than the sum of its proper divisors (4885355353).

11722125243 is an frugal number, since it uses more digits than its factorization.

11722125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7391 (or 3697 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

Adding to 11722125243 its reverse (34252122711), we get a palindrome (45974247954).

The spelling of 11722125243 in words is "eleven billion, seven hundred twenty-two million, one hundred twenty-five thousand, two hundred forty-three".