11301357281 has 2 divisors, whose sum is σ = 11301357282. Its totient is φ = 11301357280.

The previous prime is 11301357271. The next prime is 11301357289. The reversal of 11301357281 is 18275310311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10535174881 + 766182400 = 102641^2 + 27680^2 .

It is a cyclic number.

It is not a de Polignac number, because 11301357281 - 2¹⁸ = 11301095137 is a prime.

It is a super-2 number, since 2×11301357281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11301357289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650678640 + 5650678641.

It is an arithmetic number, because the mean of its divisors is an integer number (5650678641).

Almost surely, 2^11301357281 is an apocalyptic number.

It is an amenable number.

11301357281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301357281 is an equidigital number, since it uses as much as digits as its factorization.

11301357281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 11301357281 its reverse (18275310311), we get a palindrome (29576667592).

The spelling of 11301357281 in words is "eleven billion, three hundred one million, three hundred fifty-seven thousand, two hundred eighty-one".