11124124681 has 2 divisors, whose sum is σ = 11124124682. Its totient is φ = 11124124680.

The previous prime is 11124124667. The next prime is 11124124729. The reversal of 11124124681 is 18642142111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8401372281 + 2722752400 = 91659^2 + 52180^2 .

It is a cyclic number.

It is not a de Polignac number, because 11124124681 - 2¹⁹ = 11123600393 is a prime.

It is a super-2 number, since 2×11124124681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11124154681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562062340 + 5562062341.

It is an arithmetic number, because the mean of its divisors is an integer number (5562062341).

Almost surely, 2^11124124681 is an apocalyptic number.

It is an amenable number.

11124124681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11124124681 is an equidigital number, since it uses as much as digits as its factorization.

11124124681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 31.

Adding to 11124124681 its reverse (18642142111), we get a palindrome (29766266792).

The spelling of 11124124681 in words is "eleven billion, one hundred twenty-four million, one hundred twenty-four thousand, six hundred eighty-one".