23031213223 has 16 divisors (see below), whose sum is σ = 24442618720. Its totient is φ = 21640421376.

The previous prime is 23031213173. The next prime is 23031213307. The reversal of 23031213223 is 32231213032.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23031213223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23031213194 and 23031213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031223223) 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, 1226461 + ... + 1245097.

It is an arithmetic number, because the mean of its divisors is an integer number (1527663670).

Almost surely, 2^23031213223 is an apocalyptic number.

23031213223 is a deficient number, since it is larger than the sum of its proper divisors (1411405497).

23031213223 is a wasteful number, since it uses less digits than its factorization.

23031213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19186.

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

Adding to 23031213223 its reverse (32231213032), we get a palindrome (55262426255).

The spelling of 23031213223 in words is "twenty-three billion, thirty-one million, two hundred thirteen thousand, two hundred twenty-three".