23513011 has 2 divisors, whose sum is σ = 23513012. Its totient is φ = 23513010.

The previous prime is 23513003. The next prime is 23513027. The reversal of 23513011 is 11031532.

It is an a-pointer prime, because the next prime (23513027) can be obtained adding 23513011 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23513011 - 2³ = 23513003 is a prime.

It is a super-3 number, since 3×23513011³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (23513071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11756505 + 11756506.

It is an arithmetic number, because the mean of its divisors is an integer number (11756506).

Almost surely, 2^23513011 is an apocalyptic number.

23513011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23513011 is an equidigital number, since it uses as much as digits as its factorization.

23513011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 23513011 is about 4849.0216539009. The cubic root of 23513011 is about 286.4855681181.

Adding to 23513011 its reverse (11031532), we get a palindrome (34544543).

The spelling of 23513011 in words is "twenty-three million, five hundred thirteen thousand, eleven".