142310561985901 has 2 divisors, whose sum is σ = 142310561985902. Its totient is φ = 142310561985900.

The previous prime is 142310561985887. The next prime is 142310561986057. The reversal of 142310561985901 is 109589165013241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138522283663401 + 3788278322500 = 11769549^2 + 1946350^2 .

It is a cyclic number.

It is not a de Polignac number, because 142310561985901 - 2⁵ = 142310561985869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142310561989901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71155280992950 + 71155280992951.

It is an arithmetic number, because the mean of its divisors is an integer number (71155280992951).

Almost surely, 2^{142310561985901} is an apocalyptic number.

It is an amenable number.

142310561985901 is a deficient number, since it is larger than the sum of its proper divisors (1).

142310561985901 is an equidigital number, since it uses as much as digits as its factorization.

142310561985901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 142310561985901 in words is "one hundred forty-two trillion, three hundred ten billion, five hundred sixty-one million, nine hundred eighty-five thousand, nine hundred one".