140122123399987 has 2 divisors, whose sum is σ = 140122123399988. Its totient is φ = 140122123399986.

The previous prime is 140122123399939. The next prime is 140122123399997. The reversal of 140122123399987 is 789993321221041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140122123399987 - 2⁷ = 140122123399859 is a prime.

It is a super-2 number, since 2×140122123399987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140122123399997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70061061699993 + 70061061699994.

It is an arithmetic number, because the mean of its divisors is an integer number (70061061699994).

Almost surely, 2^{140122123399987} is an apocalyptic number.

140122123399987 is a deficient number, since it is larger than the sum of its proper divisors (1).

140122123399987 is an equidigital number, since it uses as much as digits as its factorization.

140122123399987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 140122123399987 in words is "one hundred forty trillion, one hundred twenty-two billion, one hundred twenty-three million, three hundred ninety-nine thousand, nine hundred eighty-seven".