20101323200194 has 8 divisors (see below), whose sum is σ = 31925630965068. Its totient is φ = 9459446211840.

The previous prime is 20101323200191. The next prime is 20101323200197. The reversal of 20101323200194 is 49100232310102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20101323200191) and next prime (20101323200197).

It can be written as a sum of positive squares in 2 ways, for example, as 19476219496969 + 625103703225 = 4413187^2 + 790635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20101323200191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295607694087 + ... + 295607694154.

Almost surely, 2^{20101323200194} is an apocalyptic number.

20101323200194 is a deficient number, since it is larger than the sum of its proper divisors (11824307764874).

20101323200194 is a wasteful number, since it uses less digits than its factorization.

20101323200194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591215388260.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 20101323200194 its reverse (49100232310102), we get a palindrome (69201555510296).

The spelling of 20101323200194 in words is "twenty trillion, one hundred one billion, three hundred twenty-three million, two hundred thousand, one hundred ninety-four".