23681033 has 2 divisors, whose sum is σ = 23681034. Its totient is φ = 23681032.

The previous prime is 23680991. The next prime is 23681041. The reversal of 23681033 is 33018632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23541904 + 139129 = 4852^2 + 373^2 .

It is a cyclic number.

It is not a de Polignac number, because 23681033 - 2¹⁴ = 23664649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23680993 and 23681011.

It is not a weakly prime, because it can be changed into another prime (23681093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11840516 + 11840517.

It is an arithmetic number, because the mean of its divisors is an integer number (11840517).

Almost surely, 2^23681033 is an apocalyptic number.

It is an amenable number.

23681033 is a deficient number, since it is larger than the sum of its proper divisors (1).

23681033 is an equidigital number, since it uses as much as digits as its factorization.

23681033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23681033 is about 4866.3161631772. The cubic root of 23681033 is about 287.1663496769.

Adding to 23681033 its reverse (33018632), we get a palindrome (56699665).

The spelling of 23681033 in words is "twenty-three million, six hundred eighty-one thousand, thirty-three".