11012012257 has 2 divisors, whose sum is σ = 11012012258. Its totient is φ = 11012012256.

The previous prime is 11012012171. The next prime is 11012012273. The reversal of 11012012257 is 75221021011.

11012012257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10184644561 + 827367696 = 100919^2 + 28764^2 .

It is an emirp because it is prime and its reverse (75221021011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11012012257 - 2¹¹ = 11012010209 is a prime.

It is not a weakly prime, because it can be changed into another prime (11012012057) 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, 5506006128 + 5506006129.

It is an arithmetic number, because the mean of its divisors is an integer number (5506006129).

Almost surely, 2^11012012257 is an apocalyptic number.

It is an amenable number.

11012012257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012012257 is an equidigital number, since it uses as much as digits as its factorization.

11012012257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 11012012257 its reverse (75221021011), we get a palindrome (86233033268).

The spelling of 11012012257 in words is "eleven billion, twelve million, twelve thousand, two hundred fifty-seven".