122811263 has 2 divisors, whose sum is σ = 122811264. Its totient is φ = 122811262.

The previous prime is 122811223. The next prime is 122811287. The reversal of 122811263 is 362118221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122811263 - 2¹⁰ = 122810239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122811223) 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, 61405631 + 61405632.

It is an arithmetic number, because the mean of its divisors is an integer number (61405632).

Almost surely, 2^122811263 is an apocalyptic number.

122811263 is a deficient number, since it is larger than the sum of its proper divisors (1).

122811263 is an equidigital number, since it uses as much as digits as its factorization.

122811263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 122811263 is about 11082.0243186884. The cubic root of 122811263 is about 497.0644832105.

Adding to 122811263 its reverse (362118221), we get a palindrome (484929484).

The spelling of 122811263 in words is "one hundred twenty-two million, eight hundred eleven thousand, two hundred sixty-three".