20331123223 has 16 divisors (see below), whose sum is σ = 21489802240. Its totient is φ = 19181448000.

The previous prime is 20331123221. The next prime is 20331123227. The reversal of 20331123223 is 32232113302.

It is a cyclic number.

It is not a de Polignac number, because 20331123223 - 2¹ = 20331123221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20331123194 and 20331123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331123221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10419898 + ... + 10421848.

It is an arithmetic number, because the mean of its divisors is an integer number (1343112640).

Almost surely, 2^20331123223 is an apocalyptic number.

20331123223 is a deficient number, since it is larger than the sum of its proper divisors (1158679017).

20331123223 is a wasteful number, since it uses less digits than its factorization.

20331123223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20331123223 its reverse (32232113302), we get a palindrome (52563236525).

The spelling of 20331123223 in words is "twenty billion, three hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-three".