122311111545143 has 2 divisors, whose sum is σ = 122311111545144. Its totient is φ = 122311111545142.

The previous prime is 122311111545019. The next prime is 122311111545149. The reversal of 122311111545143 is 341545111113221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122311111545143 - 2¹⁸ = 122311111282999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122311111545149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155555772571 + 61155555772572.

It is an arithmetic number, because the mean of its divisors is an integer number (61155555772572).

Almost surely, 2^{122311111545143} is an apocalyptic number.

122311111545143 is a deficient number, since it is larger than the sum of its proper divisors (1).

122311111545143 is an equidigital number, since it uses as much as digits as its factorization.

122311111545143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 35.

Adding to 122311111545143 its reverse (341545111113221), we get a palindrome (463856222658364).

The spelling of 122311111545143 in words is "one hundred twenty-two trillion, three hundred eleven billion, one hundred eleven million, five hundred forty-five thousand, one hundred forty-three".