23251321 has 8 divisors (see below), whose sum is σ = 24450624. Its totient is φ = 22067760.

The previous prime is 23251313. The next prime is 23251331. The reversal of 23251321 is 12315232.

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

It is a cyclic number.

It is not a de Polignac number, because 23251321 - 2³ = 23251313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23251331) 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 7 ways as a sum of consecutive naturals, for example, 846 + ... + 6871.

It is an arithmetic number, because the mean of its divisors is an integer number (3056328).

Almost surely, 2^23251321 is an apocalyptic number.

It is an amenable number.

23251321 is a deficient number, since it is larger than the sum of its proper divisors (1199303).

23251321 is a wasteful number, since it uses less digits than its factorization.

23251321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871.

The product of its digits is 360, while the sum is 19.

The square root of 23251321 is about 4821.9623598697. The cubic root of 23251321 is about 285.4187790302.

Adding to 23251321 its reverse (12315232), we get a palindrome (35566553).

The spelling of 23251321 in words is "twenty-three million, two hundred fifty-one thousand, three hundred twenty-one".