11242232251 has 2 divisors, whose sum is σ = 11242232252. Its totient is φ = 11242232250.

The previous prime is 11242232233. The next prime is 11242232279. The reversal of 11242232251 is 15223224211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11242232251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11242238251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5621116125 + 5621116126.

It is an arithmetic number, because the mean of its divisors is an integer number (5621116126).

Almost surely, 2^11242232251 is an apocalyptic number.

11242232251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11242232251 is an equidigital number, since it uses as much as digits as its factorization.

11242232251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

Adding to 11242232251 its reverse (15223224211), we get a palindrome (26465456462).

The spelling of 11242232251 in words is "eleven billion, two hundred forty-two million, two hundred thirty-two thousand, two hundred fifty-one".