23033131 has 8 divisors (see below), whose sum is σ = 25161984. Its totient is φ = 20910120.

The previous prime is 23033119. The next prime is 23033137. The reversal of 23033131 is 13133032.

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

It is not a de Polignac number, because 23033131 - 2¹¹ = 23031083 is a prime.

It is a super-2 number, since 2×23033131² = 1061050247326322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23033137) 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, 13530 + ... + 15136.

It is an arithmetic number, because the mean of its divisors is an integer number (3145248).

Almost surely, 2^23033131 is an apocalyptic number.

23033131 is a deficient number, since it is larger than the sum of its proper divisors (2128853).

23033131 is a wasteful number, since it uses less digits than its factorization.

23033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 23033131 is about 4799.2844258285. The cubic root of 23033131 is about 284.5231834234.

Adding to 23033131 its reverse (13133032), we get a palindrome (36166163).

Subtracting from 23033131 its reverse (13133032), we obtain a palindrome (9900099).

The spelling of 23033131 in words is "twenty-three million, thirty-three thousand, one hundred thirty-one".