200113202231993 has 16 divisors (see below), whose sum is σ = 205602628068240. Its totient is φ = 194628046565376.

The previous prime is 200113202231989. The next prime is 200113202232019. The reversal of 200113202231993 is 399132202311002.

It is a happy number.

200113202231993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 116804282605609 + 83308919626384 = 10807603^2 + 9127372^2 .

It is a cyclic number.

It is not a de Polignac number, because 200113202231993 - 2² = 200113202231989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200113202231983) 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, 1880409521 + ... + 1880515937.

It is an arithmetic number, because the mean of its divisors is an integer number (12850164254265).

Almost surely, 2^{200113202231993} is an apocalyptic number.

It is an amenable number.

200113202231993 is a deficient number, since it is larger than the sum of its proper divisors (5489425836247).

200113202231993 is a wasteful number, since it uses less digits than its factorization.

200113202231993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125996.

The product of its (nonzero) digits is 34992, while the sum is 38.

Adding to 200113202231993 its reverse (399132202311002), we get a palindrome (599245404542995).

The spelling of 200113202231993 in words is "two hundred trillion, one hundred thirteen billion, two hundred two million, two hundred thirty-one thousand, nine hundred ninety-three".