23130345 has 64 divisors (see below), whose sum is σ = 44605440. Its totient is φ = 10015488.

The previous prime is 23130323. The next prime is 23130347. The reversal of 23130345 is 54303132.

It is not a de Polignac number, because 23130345 - 2⁸ = 23130089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23130347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 212151 + ... + 212259.

It is an arithmetic number, because the mean of its divisors is an integer number (696960).

Almost surely, 2^23130345 is an apocalyptic number.

It is an amenable number.

23130345 is a deficient number, since it is larger than the sum of its proper divisors (21475095).

23130345 is a wasteful number, since it uses less digits than its factorization.

23130345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23130345 is about 4809.4017299452. The cubic root of 23130345 is about 284.9229092817.

Adding to 23130345 its reverse (54303132), we get a palindrome (77433477).

The spelling of 23130345 in words is "twenty-three million, one hundred thirty thousand, three hundred forty-five".