11722000231 has 2 divisors, whose sum is σ = 11722000232. Its totient is φ = 11722000230.

The previous prime is 11722000223. The next prime is 11722000249. The reversal of 11722000231 is 13200022711.

It is a weak prime.

It is an emirp because it is prime and its reverse (13200022711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11722000231 - 2³ = 11722000223 is a prime.

It is a super-2 number, since 2×11722000231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11722000199 and 11722000208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11722000261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5861000115 + 5861000116.

It is an arithmetic number, because the mean of its divisors is an integer number (5861000116).

Almost surely, 2^11722000231 is an apocalyptic number.

11722000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11722000231 is an equidigital number, since it uses as much as digits as its factorization.

11722000231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 11722000231 its reverse (13200022711), we get a palindrome (24922022942).

The spelling of 11722000231 in words is "eleven billion, seven hundred twenty-two million, two hundred thirty-one", and thus it is an aban number.