200001012321 has 16 divisors (see below), whose sum is σ = 290919780288. Its totient is φ = 121208894400.

The previous prime is 200001012317. The next prime is 200001012331. The reversal of 200001012321 is 123210100002.

It is not a de Polignac number, because 200001012321 - 2² = 200001012317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200001012297 and 200001012306.

It is not an unprimeable number, because it can be changed into a prime (200001012331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237995 + ... + 1390191.

It is an arithmetic number, because the mean of its divisors is an integer number (18182486268).

Almost surely, 2^200001012321 is an apocalyptic number.

It is an amenable number.

200001012321 is a deficient number, since it is larger than the sum of its proper divisors (90918767967).

200001012321 is a wasteful number, since it uses less digits than its factorization.

200001012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192032.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 200001012321 its reverse (123210100002), we get a palindrome (323211112323).

The spelling of 200001012321 in words is "two hundred billion, one million, twelve thousand, three hundred twenty-one".