23242121 has 24 divisors (see below), whose sum is σ = 28957824. Its totient is φ = 18553920.

The previous prime is 23242117. The next prime is 23242127. The reversal of 23242121 is 12124232.

It is not a de Polignac number, because 23242121 - 2² = 23242117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23242121.

It is not an unprimeable number, because it can be changed into a prime (23242127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45956 + ... + 46458.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 2^23242121 is an apocalyptic number.

It is an amenable number.

23242121 is a deficient number, since it is larger than the sum of its proper divisors (5715703).

23242121 is a wasteful number, since it uses less digits than its factorization.

23242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 574 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 23242121 is about 4821.0082970267. The cubic root of 23242121 is about 285.3811295683.

Adding to 23242121 its reverse (12124232), we get a palindrome (35366353).

The spelling of 23242121 in words is "twenty-three million, two hundred forty-two thousand, one hundred twenty-one".