23211413 has 4 divisors (see below), whose sum is σ = 23557920. Its totient is φ = 22864908.

The previous prime is 23211389. The next prime is 23211427. The reversal of 23211413 is 31411232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23211413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23211391 and 23211400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173153 + ... + 173286.

It is an arithmetic number, because the mean of its divisors is an integer number (5889480).

Almost surely, 2^23211413 is an apocalyptic number.

It is an amenable number.

23211413 is a deficient number, since it is larger than the sum of its proper divisors (346507).

23211413 is an equidigital number, since it uses as much as digits as its factorization.

23211413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346506.

The product of its digits is 144, while the sum is 17.

The square root of 23211413 is about 4817.8224334236. The cubic root of 23211413 is about 285.2553902398.

Adding to 23211413 its reverse (31411232), we get a palindrome (54622645).

The spelling of 23211413 in words is "twenty-three million, two hundred eleven thousand, four hundred thirteen".