23461511 has 2 divisors, whose sum is σ = 23461512. Its totient is φ = 23461510.

The previous prime is 23461489. The next prime is 23461517. The reversal of 23461511 is 11516432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23461511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23461517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11730755 + 11730756.

It is an arithmetic number, because the mean of its divisors is an integer number (11730756).

Almost surely, 2^23461511 is an apocalyptic number.

23461511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23461511 is an equidigital number, since it uses as much as digits as its factorization.

23461511 is an evil number, because the sum of its binary digits is even.

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

The square root of 23461511 is about 4843.7083933697. The cubic root of 23461511 is about 286.2762543376.

Adding to 23461511 its reverse (11516432), we get a palindrome (34977943).

The spelling of 23461511 in words is "twenty-three million, four hundred sixty-one thousand, five hundred eleven".