20223203011 has 4 divisors (see below), whose sum is σ = 22061676024. Its totient is φ = 18384730000.

The previous prime is 20223203003. The next prime is 20223203023. The reversal of 20223203011 is 11030232202.

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

It is a cyclic number.

It is not a de Polignac number, because 20223203011 - 2³ = 20223203003 is a prime.

It is a super-2 number, since 2×20223203011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20223203051) 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, 919236490 + ... + 919236511.

It is an arithmetic number, because the mean of its divisors is an integer number (5515419006).

Almost surely, 2^20223203011 is an apocalyptic number.

20223203011 is a deficient number, since it is larger than the sum of its proper divisors (1838473013).

20223203011 is a wasteful number, since it uses less digits than its factorization.

20223203011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838473012.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20223203011 its reverse (11030232202), we get a palindrome (31253435213).

The spelling of 20223203011 in words is "twenty billion, two hundred twenty-three million, two hundred three thousand, eleven".