23511002216 has 16 divisors (see below), whose sum is σ = 47474139300. Its totient is φ = 10851231744.

The previous prime is 23511002213. The next prime is 23511002311. The reversal of 23511002216 is 61220011532.

It can be written as a sum of positive squares in 2 ways, for example, as 23453697316 + 57304900 = 153146^2 + 7570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23511002191 and 23511002200.

It is not an unprimeable number, because it can be changed into a prime (23511002213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113033561 + ... + 113033768.

Almost surely, 2^23511002216 is an apocalyptic number.

23511002216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23511002216 is an abundant number, since it is smaller than the sum of its proper divisors (23963137084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23511002216 is a wasteful number, since it uses less digits than its factorization.

23511002216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226067348 (or 226067344 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 23511002216 its reverse (61220011532), we get a palindrome (84731013748).

The spelling of 23511002216 in words is "twenty-three billion, five hundred eleven million, two thousand, two hundred sixteen".