23540211 has 12 divisors (see below), whose sum is σ = 34413288. Its totient is φ = 15503904.

The previous prime is 23540207. The next prime is 23540219. The reversal of 23540211 is 11204532.

It is not a de Polignac number, because 23540211 - 2² = 23540207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23540219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15010 + ... + 16503.

It is an arithmetic number, because the mean of its divisors is an integer number (2867774).

Almost surely, 2^23540211 is an apocalyptic number.

23540211 is a deficient number, since it is larger than the sum of its proper divisors (10873077).

23540211 is a wasteful number, since it uses less digits than its factorization.

23540211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31602 (or 31599 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 23540211 is about 4851.8255327248. The cubic root of 23540211 is about 286.5959949879.

Adding to 23540211 its reverse (11204532), we get a palindrome (34744743).

The spelling of 23540211 in words is "twenty-three million, five hundred forty thousand, two hundred eleven".