200121310203 has 16 divisors (see below), whose sum is σ = 284719582080. Its totient is φ = 124661001024.

The previous prime is 200121310201. The next prime is 200121310223. The reversal of 200121310203 is 302013121002.

It is not a de Polignac number, because 200121310203 - 2¹ = 200121310201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200121310201) 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, 24043101 + ... + 24051422.

It is an arithmetic number, because the mean of its divisors is an integer number (17794973880).

Almost surely, 2^200121310203 is an apocalyptic number.

200121310203 is a deficient number, since it is larger than the sum of its proper divisors (84598271877).

200121310203 is a wasteful number, since it uses less digits than its factorization.

200121310203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48094618.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 200121310203 its reverse (302013121002), we get a palindrome (502134431205).

The spelling of 200121310203 in words is "two hundred billion, one hundred twenty-one million, three hundred ten thousand, two hundred three".