122143413309979 has 2 divisors, whose sum is σ = 122143413309980. Its totient is φ = 122143413309978.

The previous prime is 122143413309949. The next prime is 122143413310007. The reversal of 122143413309979 is 979903314341221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122143413309979 - 2¹¹ = 122143413307931 is a prime.

It is not a weakly prime, because it can be changed into another prime (122143413309949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61071706654989 + 61071706654990.

It is an arithmetic number, because the mean of its divisors is an integer number (61071706654990).

Almost surely, 2^{122143413309979} is an apocalyptic number.

122143413309979 is a deficient number, since it is larger than the sum of its proper divisors (1).

122143413309979 is an equidigital number, since it uses as much as digits as its factorization.

122143413309979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 122143413309979 in words is "one hundred twenty-two trillion, one hundred forty-three billion, four hundred thirteen million, three hundred nine thousand, nine hundred seventy-nine".