23642011 has 2 divisors, whose sum is σ = 23642012. Its totient is φ = 23642010.

The previous prime is 23641997. The next prime is 23642029. The reversal of 23642011 is 11024632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23642011 - 2¹¹ = 23639963 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23642011.

It is not a weakly prime, because it can be changed into another prime (23642041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11821005 + 11821006.

It is an arithmetic number, because the mean of its divisors is an integer number (11821006).

Almost surely, 2^23642011 is an apocalyptic number.

23642011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23642011 is an equidigital number, since it uses as much as digits as its factorization.

23642011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 23642011 is about 4862.3051117757. The cubic root of 23642011 is about 287.0085304639.

Adding to 23642011 its reverse (11024632), we get a palindrome (34666643).

The spelling of 23642011 in words is "twenty-three million, six hundred forty-two thousand, eleven".