23213112 has 64 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 6986112.

The previous prime is 23213087. The next prime is 23213131. The reversal of 23213112 is 21131232.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23213091 and 23213100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13873 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^23213112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23213112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).

23213112 is an abundant number, since it is smaller than the sum of its proper divisors (40653768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23213112 is a wasteful number, since it uses less digits than its factorization.

23213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1648 counting only the distinct ones).

The product of its digits is 72, while the sum is 15.

The square root of 23213112 is about 4817.9987546698. The cubic root of 23213112 is about 285.2623499925.

Adding to 23213112 its reverse (21131232), we get a palindrome (44344344).

The spelling of 23213112 in words is "twenty-three million, two hundred thirteen thousand, one hundred twelve".