23133021 has 8 divisors (see below), whose sum is σ = 31117440. Its totient is φ = 15285312.

The previous prime is 23132999. The next prime is 23133031. The reversal of 23133021 is 12033132.

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

It is not a de Polignac number, because 23133021 - 2⁹ = 23132509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33781 + ... + 34458.

It is an arithmetic number, because the mean of its divisors is an integer number (3889680).

Almost surely, 2^23133021 is an apocalyptic number.

It is an amenable number.

23133021 is a deficient number, since it is larger than the sum of its proper divisors (7984419).

23133021 is a wasteful number, since it uses less digits than its factorization.

23133021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68355.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 23133021 is about 4809.6799269806. The cubic root of 23133021 is about 284.9338966420.

Adding to 23133021 its reverse (12033132), we get a palindrome (35166153).

The spelling of 23133021 in words is "twenty-three million, one hundred thirty-three thousand, twenty-one".