23162011 has 2 divisors, whose sum is σ = 23162012. Its totient is φ = 23162010.

The previous prime is 23162003. The next prime is 23162017. The reversal of 23162011 is 11026132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23162011 - 2³ = 23162003 is a prime.

It is not a weakly prime, because it can be changed into another prime (23162017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11581005 + 11581006.

It is an arithmetic number, because the mean of its divisors is an integer number (11581006).

Almost surely, 2^23162011 is an apocalyptic number.

23162011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23162011 is an equidigital number, since it uses as much as digits as its factorization.

23162011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 23162011 is about 4812.6926974408. The cubic root of 23162011 is about 285.0528721031.

Adding to 23162011 its reverse (11026132), we get a palindrome (34188143).

The spelling of 23162011 in words is "twenty-three million, one hundred sixty-two thousand, eleven".