23121326 has 8 divisors (see below), whose sum is σ = 36722160. Its totient is φ = 10880608.

The previous prime is 23121283. The next prime is 23121331. The reversal of 23121326 is 62312132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23121298 and 23121307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339986 + ... + 340053.

It is an arithmetic number, because the mean of its divisors is an integer number (4590270).

Almost surely, 2^23121326 is an apocalyptic number.

23121326 is a deficient number, since it is larger than the sum of its proper divisors (13600834).

23121326 is a wasteful number, since it uses less digits than its factorization.

23121326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680058.

The product of its digits is 432, while the sum is 20.

The square root of 23121326 is about 4808.4639959139. The cubic root of 23121326 is about 284.8858720219.

Adding to 23121326 its reverse (62312132), we get a palindrome (85433458).

The spelling of 23121326 in words is "twenty-three million, one hundred twenty-one thousand, three hundred twenty-six".