20001000201193 has 4 divisors (see below), whose sum is σ = 21819272946768. Its totient is φ = 18182727455620.

The previous prime is 20001000201181. The next prime is 20001000201199. The reversal of 20001000201193 is 39110200010002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20001000201193 - 2¹³ = 20001000193001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20001000201193.

It is not an unprimeable number, because it can be changed into a prime (20001000201199) 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, 909136372771 + ... + 909136372792.

It is an arithmetic number, because the mean of its divisors is an integer number (5454818236692).

Almost surely, 2^{20001000201193} is an apocalyptic number.

It is an amenable number.

20001000201193 is a deficient number, since it is larger than the sum of its proper divisors (1818272745575).

20001000201193 is a wasteful number, since it uses less digits than its factorization.

20001000201193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818272745574.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20001000201193 its reverse (39110200010002), we get a palindrome (59111200211195).

The spelling of 20001000201193 in words is "twenty trillion, one billion, two hundred one thousand, one hundred ninety-three".