200420274173 has 48 divisors (see below), whose sum is σ = 244935912960. Its totient is φ = 163289952000.

The previous prime is 200420274151. The next prime is 200420274193. The reversal of 200420274173 is 371472024002.

It is not a de Polignac number, because 200420274173 - 2¹² = 200420270077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200420274143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 111281873 + ... + 111283673.

It is an arithmetic number, because the mean of its divisors is an integer number (5102831520).

Almost surely, 2^200420274173 is an apocalyptic number.

It is an amenable number.

200420274173 is a deficient number, since it is larger than the sum of its proper divisors (44515638787).

200420274173 is a wasteful number, since it uses less digits than its factorization.

200420274173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 200420274173 its reverse (371472024002), we get a palindrome (571892298175).

The spelling of 200420274173 in words is "two hundred billion, four hundred twenty million, two hundred seventy-four thousand, one hundred seventy-three".