200200091123 has 4 divisors (see below), whose sum is σ = 202071120120. Its totient is φ = 198329062128.

The previous prime is 200200091111. The next prime is 200200091137. The reversal of 200200091123 is 321190002002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200200091123 - 2³⁴ = 183020221939 is a prime.

It is a super-2 number, since 2×200200091123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200200091095 and 200200091104.

It is not an unprimeable number, because it can be changed into a prime (200200091723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935514338 + ... + 935514551.

It is an arithmetic number, because the mean of its divisors is an integer number (50517780030).

Almost surely, 2^200200091123 is an apocalyptic number.

200200091123 is a deficient number, since it is larger than the sum of its proper divisors (1871028997).

200200091123 is a wasteful number, since it uses less digits than its factorization.

200200091123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871028996.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 200200091123 its reverse (321190002002), we get a palindrome (521390093125).

The spelling of 200200091123 in words is "two hundred billion, two hundred million, ninety-one thousand, one hundred twenty-three".