11305224251 has 4 divisors (see below), whose sum is σ = 11695059600. Its totient is φ = 10915388904.

The previous prime is 11305224221. The next prime is 11305224313. The reversal of 11305224251 is 15242250311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11305224251 - 2¹⁴ = 11305207867 is a prime.

It is a super-2 number, since 2×11305224251² (a number of 21 digits) contains 22 as substring.

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 11305224251.

It is not an unprimeable number, because it can be changed into a prime (11305224221) 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, 194917631 + ... + 194917688.

It is an arithmetic number, because the mean of its divisors is an integer number (2923764900).

Almost surely, 2^11305224251 is an apocalyptic number.

11305224251 is a deficient number, since it is larger than the sum of its proper divisors (389835349).

11305224251 is an equidigital number, since it uses as much as digits as its factorization.

11305224251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389835348.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11305224251 its reverse (15242250311), we get a palindrome (26547474562).

The spelling of 11305224251 in words is "eleven billion, three hundred five million, two hundred twenty-four thousand, two hundred fifty-one".