23140331 has 4 divisors (see below), whose sum is σ = 23532600. Its totient is φ = 22748064.

The previous prime is 23140319. The next prime is 23140357. The reversal of 23140331 is 13304132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23140331 - 2¹⁰ = 23139307 is a prime.

It is a super-2 number, since 2×23140331² = 1070949837579122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23140531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196046 + ... + 196163.

It is an arithmetic number, because the mean of its divisors is an integer number (5883150).

Almost surely, 2^23140331 is an apocalyptic number.

23140331 is a deficient number, since it is larger than the sum of its proper divisors (392269).

23140331 is an equidigital number, since it uses as much as digits as its factorization.

23140331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392268.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 23140331 is about 4810.4397927840. The cubic root of 23140331 is about 284.9639063761.

Adding to 23140331 its reverse (13304132), we get a palindrome (36444463).

The spelling of 23140331 in words is "twenty-three million, one hundred forty thousand, three hundred thirty-one".