102042142073 has 2 divisors, whose sum is σ = 102042142074. Its totient is φ = 102042142072.

The previous prime is 102042142057. The next prime is 102042142151. The reversal of 102042142073 is 370241240201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53801730304 + 48240411769 = 231952^2 + 219637^2 .

It is a cyclic number.

It is not a de Polignac number, because 102042142073 - 2⁴ = 102042142057 is a prime.

It is not a weakly prime, because it can be changed into another prime (102042142003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51021071036 + 51021071037.

It is an arithmetic number, because the mean of its divisors is an integer number (51021071037).

Almost surely, 2^102042142073 is an apocalyptic number.

It is an amenable number.

102042142073 is a deficient number, since it is larger than the sum of its proper divisors (1).

102042142073 is an equidigital number, since it uses as much as digits as its factorization.

102042142073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 102042142073 its reverse (370241240201), we get a palindrome (472283382274).

The spelling of 102042142073 in words is "one hundred two billion, forty-two million, one hundred forty-two thousand, seventy-three".