23031266 has 4 divisors (see below), whose sum is σ = 34546902. Its totient is φ = 11515632.

The previous prime is 23031263. The next prime is 23031271. The reversal of 23031266 is 66213032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 326041 = 4765^2 + 571^2 .

It is not an unprimeable number, because it can be changed into a prime (23031263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757815 + ... + 5757818.

Almost surely, 2^23031266 is an apocalyptic number.

23031266 is a deficient number, since it is larger than the sum of its proper divisors (11515636).

23031266 is a wasteful number, since it uses less digits than its factorization.

23031266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11515635.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23031266 is about 4799.0901220961. The cubic root of 23031266 is about 284.5155039050.

Adding to 23031266 its reverse (66213032), we get a palindrome (89244298).

The spelling of 23031266 in words is "twenty-three million, thirty-one thousand, two hundred sixty-six".