11030231257 has 2 divisors, whose sum is σ = 11030231258. Its totient is φ = 11030231256.

The previous prime is 11030231197. The next prime is 11030231273. The reversal of 11030231257 is 75213203011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9155427856 + 1874803401 = 95684^2 + 43299^2 .

It is an emirp because it is prime and its reverse (75213203011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11030231257 - 2²⁷ = 10896013529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11030201257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515115628 + 5515115629.

It is an arithmetic number, because the mean of its divisors is an integer number (5515115629).

Almost surely, 2^11030231257 is an apocalyptic number.

It is an amenable number.

11030231257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030231257 is an equidigital number, since it uses as much as digits as its factorization.

11030231257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 11030231257 its reverse (75213203011), we get a palindrome (86243434268).

The spelling of 11030231257 in words is "eleven billion, thirty million, two hundred thirty-one thousand, two hundred fifty-seven".