142020403687 has 2 divisors, whose sum is σ = 142020403688. Its totient is φ = 142020403686.

The previous prime is 142020403663. The next prime is 142020403747. The reversal of 142020403687 is 786304020241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142020403687 - 2³¹ = 139872920039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142020403627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71010201843 + 71010201844.

It is an arithmetic number, because the mean of its divisors is an integer number (71010201844).

Almost surely, 2^142020403687 is an apocalyptic number.

142020403687 is a deficient number, since it is larger than the sum of its proper divisors (1).

142020403687 is an equidigital number, since it uses as much as digits as its factorization.

142020403687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 142020403687 in words is "one hundred forty-two billion, twenty million, four hundred three thousand, six hundred eighty-seven".