23308051 has 4 divisors (see below), whose sum is σ = 25100992. Its totient is φ = 21515112.

The previous prime is 23308013. The next prime is 23308067. The reversal of 23308051 is 15080332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23308051 - 2¹⁵ = 23275283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23308651) by changing a digit.

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, 896451 + ... + 896476.

It is an arithmetic number, because the mean of its divisors is an integer number (6275248).

Almost surely, 2^23308051 is an apocalyptic number.

23308051 is a deficient number, since it is larger than the sum of its proper divisors (1792941).

23308051 is a wasteful number, since it uses less digits than its factorization.

23308051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792940.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 23308051 is about 4827.8412359977. The cubic root of 23308051 is about 285.6507179175.

Adding to 23308051 its reverse (15080332), we get a palindrome (38388383).

The spelling of 23308051 in words is "twenty-three million, three hundred eight thousand, fifty-one".