200001201023 has 4 divisors (see below), whose sum is σ = 215385908808. Its totient is φ = 184616493240.

The previous prime is 200001201017. The next prime is 200001201047. The reversal of 200001201023 is 320102100002.

It is a happy number.

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 200001201023 - 2¹⁶ = 200001135487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200001200995 and 200001201013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001201013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7692353873 + ... + 7692353898.

It is an arithmetic number, because the mean of its divisors is an integer number (53846477202).

Almost surely, 2^200001201023 is an apocalyptic number.

200001201023 is a deficient number, since it is larger than the sum of its proper divisors (15384707785).

200001201023 is a wasteful number, since it uses less digits than its factorization.

200001201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15384707784.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 200001201023 its reverse (320102100002), we get a palindrome (520103301025).

The spelling of 200001201023 in words is "two hundred billion, one million, two hundred one thousand, twenty-three".