23211324 has 108 divisors (see below), whose sum is σ = 65707824. Its totient is φ = 6893568.

The previous prime is 23211323. The next prime is 23211329. The reversal of 23211324 is 42311232.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 = 23211297 and 23211306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211323) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 239244 + ... + 239340.

Almost surely, 2^23211324 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 23211324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32853912).

23211324 is an abundant number, since it is smaller than the sum of its proper divisors (42496500).

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

23211324 is a wasteful number, since it uses less digits than its factorization.

23211324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 142 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 23211324 is about 4817.8131968768. The cubic root of 23211324 is about 285.2550256524.

Adding to 23211324 its reverse (42311232), we get a palindrome (65522556).

The spelling of 23211324 in words is "twenty-three million, two hundred eleven thousand, three hundred twenty-four".