23133331 has 8 divisors (see below), whose sum is σ = 25996320. Its totient is φ = 20425152.

The previous prime is 23133323. The next prime is 23133359. The reversal of 23133331 is 13333132.

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 23133331 - 2³ = 23133323 is a prime.

It is a super-2 number, since 2×23133331² = 1070302006311122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23133299 and 23133308.

It is not an unprimeable number, because it can be changed into a prime (23133301) 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, 38386 + ... + 38983.

It is an arithmetic number, because the mean of its divisors is an integer number (3249540).

Almost surely, 2^23133331 is an apocalyptic number.

23133331 is a deficient number, since it is larger than the sum of its proper divisors (2862989).

23133331 is a wasteful number, since it uses less digits than its factorization.

23133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77405.

The product of its digits is 486, while the sum is 19.

The square root of 23133331 is about 4809.7121535493. The cubic root of 23133331 is about 284.9351694130.

Adding to 23133331 its reverse (13333132), we get a palindrome (36466463).

The spelling of 23133331 in words is "twenty-three million, one hundred thirty-three thousand, three hundred thirty-one".