23170313 has 2 divisors, whose sum is σ = 23170314. Its totient is φ = 23170312.

The previous prime is 23170307. The next prime is 23170319. The reversal of 23170313 is 31307132.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (23170307) and next prime (23170319).

It can be written as a sum of positive squares in only one way, i.e., 12588304 + 10582009 = 3548^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 23170313 - 2¹² = 23166217 is a prime.

It is not a weakly prime, because it can be changed into another prime (23170319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11585156 + 11585157.

It is an arithmetic number, because the mean of its divisors is an integer number (11585157).

Almost surely, 2^23170313 is an apocalyptic number.

It is an amenable number.

23170313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23170313 is an equidigital number, since it uses as much as digits as its factorization.

23170313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 23170313 is about 4813.5551310855. Note that the first 3 decimals coincide. The cubic root of 23170313 is about 285.0869253676.

Adding to 23170313 its reverse (31307132), we get a palindrome (54477445).

The spelling of 23170313 in words is "twenty-three million, one hundred seventy thousand, three hundred thirteen".