20113433201 has 4 divisors (see below), whose sum is σ = 20149544052. Its totient is φ = 20077322352.

The previous prime is 20113433107. The next prime is 20113433257. The reversal of 20113433201 is 10233431102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12513778225 + 7599654976 = 111865^2 + 87176^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113433201 - 2¹⁰ = 20113432177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113432201) 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, 18054590 + ... + 18055703.

It is an arithmetic number, because the mean of its divisors is an integer number (5037386013).

Almost surely, 2^20113433201 is an apocalyptic number.

It is an amenable number.

20113433201 is a deficient number, since it is larger than the sum of its proper divisors (36110851).

20113433201 is an equidigital number, since it uses as much as digits as its factorization.

20113433201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36110850.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20113433201 its reverse (10233431102), we get a palindrome (30346864303).

The spelling of 20113433201 in words is "twenty billion, one hundred thirteen million, four hundred thirty-three thousand, two hundred one".