23121230 has 16 divisors (see below), whose sum is σ = 45401904. Its totient is φ = 8407680.

The previous prime is 23121209. The next prime is 23121247. The reversal of 23121230 is 3212132.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104987 + ... + 105206.

It is an arithmetic number, because the mean of its divisors is an integer number (2837619).

Almost surely, 2^23121230 is an apocalyptic number.

23121230 is a deficient number, since it is larger than the sum of its proper divisors (22280674).

23121230 is a wasteful number, since it uses less digits than its factorization.

23121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210211.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23121230 is about 4808.4540135058. The cubic root of 23121230 is about 284.8854777383.

Adding to 23121230 its reverse (3212132), we get a palindrome (26333362).

The spelling of 23121230 in words is "twenty-three million, one hundred twenty-one thousand, two hundred thirty".