20223310231 has 32 divisors (see below), whose sum is σ = 21854177280. Its totient is φ = 18657734400.

The previous prime is 20223310213. The next prime is 20223310241. The reversal of 20223310231 is 13201332202.

It is a cyclic number.

It is not a de Polignac number, because 20223310231 - 2⁵ = 20223310199 is a prime.

It is a super-2 number, since 2×20223310231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20223310199 and 20223310208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223310241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65026566 + ... + 65026876.

It is an arithmetic number, because the mean of its divisors is an integer number (682943040).

Almost surely, 2^20223310231 is an apocalyptic number.

20223310231 is a deficient number, since it is larger than the sum of its proper divisors (1630867049).

20223310231 is a wasteful number, since it uses less digits than its factorization.

20223310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20223310231 its reverse (13201332202), we get a palindrome (33424642433).

The spelling of 20223310231 in words is "twenty billion, two hundred twenty-three million, three hundred ten thousand, two hundred thirty-one".