122311112040511 has 2 divisors, whose sum is σ = 122311112040512. Its totient is φ = 122311112040510.

The previous prime is 122311112040497. The next prime is 122311112040529. The reversal of 122311112040511 is 115040211113221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122311112040511 - 2⁹ = 122311112039999 is a prime.

It is a super-2 number, since 2×122311112040511² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122311112040911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155556020255 + 61155556020256.

It is an arithmetic number, because the mean of its divisors is an integer number (61155556020256).

Almost surely, 2^{122311112040511} is an apocalyptic number.

122311112040511 is a deficient number, since it is larger than the sum of its proper divisors (1).

122311112040511 is an equidigital number, since it uses as much as digits as its factorization.

122311112040511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 25.

Adding to 122311112040511 its reverse (115040211113221), we get a palindrome (237351323153732).

The spelling of 122311112040511 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred twelve million, forty thousand, five hundred eleven".