202102101073 has 2 divisors, whose sum is σ = 202102101074. Its totient is φ = 202102101072.

The previous prime is 202102101067. The next prime is 202102101121. The reversal of 202102101073 is 370101201202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201195308304 + 906792769 = 448548^2 + 30113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202102101073 is a prime.

It is a super-2 number, since 2×202102101073² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202102101073.

It is not a weakly prime, because it can be changed into another prime (202102102073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051050536 + 101051050537.

It is an arithmetic number, because the mean of its divisors is an integer number (101051050537).

Almost surely, 2^202102101073 is an apocalyptic number.

It is an amenable number.

202102101073 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102101073 is an equidigital number, since it uses as much as digits as its factorization.

202102101073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 202102101073 its reverse (370101201202), we get a palindrome (572203302275).

The spelling of 202102101073 in words is "two hundred two billion, one hundred two million, one hundred one thousand, seventy-three".