23100661 has 2 divisors, whose sum is σ = 23100662. Its totient is φ = 23100660.

The previous prime is 23100607. The next prime is 23100667. The reversal of 23100661 is 16600132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23097636 + 3025 = 4806^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100661 - 2⁹ = 23100149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23100667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550330 + 11550331.

It is an arithmetic number, because the mean of its divisors is an integer number (11550331).

Almost surely, 2^23100661 is an apocalyptic number.

It is an amenable number.

23100661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100661 is an equidigital number, since it uses as much as digits as its factorization.

23100661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23100661 is about 4806.3147004748. The cubic root of 23100661 is about 284.8009731811.

Adding to 23100661 its reverse (16600132), we get a palindrome (39700793).

The spelling of 23100661 in words is "twenty-three million, one hundred thousand, six hundred sixty-one".