142121068682897 has 2 divisors, whose sum is σ = 142121068682898. Its totient is φ = 142121068682896.

The previous prime is 142121068682881. The next prime is 142121068682927. The reversal of 142121068682897 is 798286860121241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80303750647696 + 61817318035201 = 8961236^2 + 7862399^2 .

It is a cyclic number.

It is not a de Polignac number, because 142121068682897 - 2⁴ = 142121068682881 is a prime.

It is not a weakly prime, because it can be changed into another prime (142121068682867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71060534341448 + 71060534341449.

It is an arithmetic number, because the mean of its divisors is an integer number (71060534341449).

Almost surely, 2^{142121068682897} is an apocalyptic number.

It is an amenable number.

142121068682897 is a deficient number, since it is larger than the sum of its proper divisors (1).

142121068682897 is an equidigital number, since it uses as much as digits as its factorization.

142121068682897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37158912, while the sum is 65.

The spelling of 142121068682897 in words is "one hundred forty-two trillion, one hundred twenty-one billion, sixty-eight million, six hundred eighty-two thousand, eight hundred ninety-seven".