23212329 has 12 divisors (see below), whose sum is σ = 36003024. Its totient is φ = 13264104.

The previous prime is 23212297. The next prime is 23212331. The reversal of 23212329 is 92321232.

It is not a de Polignac number, because 23212329 - 2⁵ = 23212297 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23212299 and 23212308.

It is not an unprimeable number, because it can be changed into a prime (23212349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78807 + ... + 79100.

It is an arithmetic number, because the mean of its divisors is an integer number (3000252).

Almost surely, 2^23212329 is an apocalyptic number.

It is an amenable number.

23212329 is a deficient number, since it is larger than the sum of its proper divisors (12790695).

23212329 is a wasteful number, since it uses less digits than its factorization.

23212329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157924 (or 157917 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 23212329 is about 4817.9174961803. The cubic root of 23212329 is about 285.2591425677.

It can be divided in two parts, 232 and 12329, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 23212329 in words is "twenty-three million, two hundred twelve thousand, three hundred twenty-nine".