11121233212057 has 2 divisors, whose sum is σ = 11121233212058. Its totient is φ = 11121233212056.

The previous prime is 11121233212013. The next prime is 11121233212069. The reversal of 11121233212057 is 75021233212111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9400993738816 + 1720239473241 = 3066104^2 + 1311579^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121233212057 - 2¹⁹ = 11121232687769 is a prime.

It is not a weakly prime, because it can be changed into another prime (11121233212087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560616606028 + 5560616606029.

It is an arithmetic number, because the mean of its divisors is an integer number (5560616606029).

Almost surely, 2^{11121233212057} is an apocalyptic number.

It is an amenable number.

11121233212057 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121233212057 is an equidigital number, since it uses as much as digits as its factorization.

11121233212057 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 31.

Adding to 11121233212057 its reverse (75021233212111), we get a palindrome (86142466424168).

The spelling of 11121233212057 in words is "eleven trillion, one hundred twenty-one billion, two hundred thirty-three million, two hundred twelve thousand, fifty-seven".