23452121 has 16 divisors (see below), whose sum is σ = 29724288. Its totient is φ = 17971200.

The previous prime is 23452109. The next prime is 23452147. The reversal of 23452121 is 12125432.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23452121 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23452093 and 23452102.

It is not an unprimeable number, because it can be changed into a prime (23452181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201 + ... + 7193.

It is an arithmetic number, because the mean of its divisors is an integer number (1857768).

Almost surely, 2^23452121 is an apocalyptic number.

It is an amenable number.

23452121 is a deficient number, since it is larger than the sum of its proper divisors (6272167).

23452121 is a wasteful number, since it uses less digits than its factorization.

23452121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its digits is 480, while the sum is 20.

The square root of 23452121 is about 4842.7389977161. The cubic root of 23452121 is about 286.2380571284.

Adding to 23452121 its reverse (12125432), we get a palindrome (35577553).

The spelling of 23452121 in words is "twenty-three million, four hundred fifty-two thousand, one hundred twenty-one".