20201313233 has 4 divisors (see below), whose sum is σ = 20201606208. Its totient is φ = 20201020260.

The previous prime is 20201313229. The next prime is 20201313259. The reversal of 20201313233 is 33231310202.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20201313233 - 2² = 20201313229 is a prime.

It is a super-4 number, since 4×20201313233⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201313533) 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 3 ways as a sum of consecutive naturals, for example, 20060 + ... + 202002.

It is an arithmetic number, because the mean of its divisors is an integer number (5050401552).

Almost surely, 2^20201313233 is an apocalyptic number.

It is an amenable number.

20201313233 is a deficient number, since it is larger than the sum of its proper divisors (292975).

20201313233 is a wasteful number, since it uses less digits than its factorization.

20201313233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292974.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20201313233 its reverse (33231310202), we get a palindrome (53432623435).

The spelling of 20201313233 in words is "twenty billion, two hundred one million, three hundred thirteen thousand, two hundred thirty-three".