20123313201 has 6 divisors (see below), whose sum is σ = 29067007970. Its totient is φ = 13415542128.

The previous prime is 20123313187. The next prime is 20123313271. The reversal of 20123313201 is 10231332102.

20123313201 is a `hidden beast` number, since 2 + 0 + 12 + 331 + 320 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18299596176 + 1823717025 = 135276^2 + 42705^2 .

It is not a de Polignac number, because 20123313201 - 2⁵ = 20123313169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123313271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117961836 + ... + 1117961853.

Almost surely, 2^20123313201 is an apocalyptic number.

It is an amenable number.

20123313201 is a deficient number, since it is larger than the sum of its proper divisors (8943694769).

20123313201 is a wasteful number, since it uses less digits than its factorization.

20123313201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235923695 (or 2235923692 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20123313201 its reverse (10231332102), we get a palindrome (30354645303).

The spelling of 20123313201 in words is "twenty billion, one hundred twenty-three million, three hundred thirteen thousand, two hundred one".