200402202173 has 2 divisors, whose sum is σ = 200402202174. Its totient is φ = 200402202172.

The previous prime is 200402202167. The next prime is 200402202271. The reversal of 200402202173 is 371202204002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153179869924 + 47222332249 = 391382^2 + 217307^2 .

It is a cyclic number.

It is not a de Polignac number, because 200402202173 - 2⁴ = 200402202157 is a prime.

It is a super-2 number, since 2×200402202173² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200402202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100201101086 + 100201101087.

It is an arithmetic number, because the mean of its divisors is an integer number (100201101087).

Almost surely, 2^200402202173 is an apocalyptic number.

It is an amenable number.

200402202173 is a deficient number, since it is larger than the sum of its proper divisors (1).

200402202173 is an equidigital number, since it uses as much as digits as its factorization.

200402202173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

Adding to 200402202173 its reverse (371202204002), we get a palindrome (571604406175).

The spelling of 200402202173 in words is "two hundred billion, four hundred two million, two hundred two thousand, one hundred seventy-three".