11231112457 has 2 divisors, whose sum is σ = 11231112458. Its totient is φ = 11231112456.

The previous prime is 11231112443. The next prime is 11231112511. The reversal of 11231112457 is 75421113211.

11231112457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10034229241 + 1196883216 = 100171^2 + 34596^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231112457 - 2¹¹ = 11231110409 is a prime.

It is a super-2 number, since 2×11231112457² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231112157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615556228 + 5615556229.

It is an arithmetic number, because the mean of its divisors is an integer number (5615556229).

Almost surely, 2^11231112457 is an apocalyptic number.

It is an amenable number.

11231112457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231112457 is an equidigital number, since it uses as much as digits as its factorization.

11231112457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

Adding to 11231112457 its reverse (75421113211), we get a palindrome (86652225668).

The spelling of 11231112457 in words is "eleven billion, two hundred thirty-one million, one hundred twelve thousand, four hundred fifty-seven".