20231303111 has 4 divisors (see below), whose sum is σ = 20883925824. Its totient is φ = 19578680400.

The previous prime is 20231303039. The next prime is 20231303119. The reversal of 20231303111 is 11130313202.

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 20231303111 - 2¹⁴ = 20231286727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20231303111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231303119) 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, 326311310 + ... + 326311371.

It is an arithmetic number, because the mean of its divisors is an integer number (5220981456).

Almost surely, 2^20231303111 is an apocalyptic number.

20231303111 is a deficient number, since it is larger than the sum of its proper divisors (652622713).

20231303111 is an equidigital number, since it uses as much as digits as its factorization.

20231303111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652622712.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20231303111 its reverse (11130313202), we get a palindrome (31361616313).

The spelling of 20231303111 in words is "twenty billion, two hundred thirty-one million, three hundred three thousand, one hundred eleven".