200201111421123 has 16 divisors (see below), whose sum is σ = 266959518448640. Its totient is φ = 133455056620896.

The previous prime is 200201111421061. The next prime is 200201111421161. The reversal of 200201111421123 is 321124111102002.

It is not a de Polignac number, because 200201111421123 - 2¹⁴ = 200201111404739 is a prime.

It is a super-2 number, since 2×200201111421123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200201111421123.

It is not an unprimeable number, because it can be changed into a prime (200201111426123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034742413 + ... + 2034840801.

It is an arithmetic number, because the mean of its divisors is an integer number (16684969903040).

Almost surely, 2^{200201111421123} is an apocalyptic number.

200201111421123 is a deficient number, since it is larger than the sum of its proper divisors (66758407027517).

200201111421123 is a wasteful number, since it uses less digits than its factorization.

200201111421123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154266.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 200201111421123 its reverse (321124111102002), we get a palindrome (521325222523125).

The spelling of 200201111421123 in words is "two hundred trillion, two hundred one billion, one hundred eleven million, four hundred twenty-one thousand, one hundred twenty-three".