142344211993 has 2 divisors, whose sum is σ = 142344211994. Its totient is φ = 142344211992.

The previous prime is 142344211967. The next prime is 142344212011. The reversal of 142344211993 is 399112443241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72979401609 + 69364810384 = 270147^2 + 263372^2 .

It is a cyclic number.

It is not a de Polignac number, because 142344211993 - 2⁹ = 142344211481 is a prime.

It is not a weakly prime, because it can be changed into another prime (142344211193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71172105996 + 71172105997.

It is an arithmetic number, because the mean of its divisors is an integer number (71172105997).

Almost surely, 2^142344211993 is an apocalyptic number.

It is an amenable number.

142344211993 is a deficient number, since it is larger than the sum of its proper divisors (1).

142344211993 is an equidigital number, since it uses as much as digits as its factorization.

142344211993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The spelling of 142344211993 in words is "one hundred forty-two billion, three hundred forty-four million, two hundred eleven thousand, nine hundred ninety-three".