23031017 has 4 divisors (see below), whose sum is σ = 23825220. Its totient is φ = 22236816.

The previous prime is 23030999. The next prime is 23031061. The reversal of 23031017 is 71013032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14055001 + 8976016 = 3749^2 + 2996^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031017 - 2¹² = 23026921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23030986 and 23031004.

It is not an unprimeable number, because it can be changed into a prime (23031517) 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, 397058 + ... + 397115.

It is an arithmetic number, because the mean of its divisors is an integer number (5956305).

Almost surely, 2^23031017 is an apocalyptic number.

It is an amenable number.

23031017 is a deficient number, since it is larger than the sum of its proper divisors (794203).

23031017 is an equidigital number, since it uses as much as digits as its factorization.

23031017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794202.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 23031017 is about 4799.0641796084. The cubic root of 23031017 is about 284.5144785653.

Adding to 23031017 its reverse (71013032), we get a palindrome (94044049).

The spelling of 23031017 in words is "twenty-three million, thirty-one thousand, seventeen".