11230113281 has 2 divisors, whose sum is σ = 11230113282. Its totient is φ = 11230113280.

The previous prime is 11230113269. The next prime is 11230113287. The reversal of 11230113281 is 18231103211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11172490000 + 57623281 = 105700^2 + 7591^2 .

It is a cyclic number.

It is not a de Polignac number, because 11230113281 - 2¹⁴ = 11230096897 is a prime.

It is a super-2 number, since 2×11230113281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11230113287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615056640 + 5615056641.

It is an arithmetic number, because the mean of its divisors is an integer number (5615056641).

Almost surely, 2^11230113281 is an apocalyptic number.

It is an amenable number.

11230113281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11230113281 is an equidigital number, since it uses as much as digits as its factorization.

11230113281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 11230113281 its reverse (18231103211), we get a palindrome (29461216492).

The spelling of 11230113281 in words is "eleven billion, two hundred thirty million, one hundred thirteen thousand, two hundred eighty-one".