23403724052011 has 4 divisors (see below), whose sum is σ = 23403735376000. Its totient is φ = 23403712728024.

The previous prime is 23403724051993. The next prime is 23403724052017. The reversal of 23403724052011 is 11025042730432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23403724052011 - 2¹¹ = 23403724049963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23403724052017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1581771 + ... + 7022068.

It is an arithmetic number, because the mean of its divisors is an integer number (5850933844000).

Almost surely, 2^{23403724052011} is an apocalyptic number.

23403724052011 is a deficient number, since it is larger than the sum of its proper divisors (11323989).

23403724052011 is an equidigital number, since it uses as much as digits as its factorization.

23403724052011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11323988.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 23403724052011 its reverse (11025042730432), we get a palindrome (34428766782443).

The spelling of 23403724052011 in words is "twenty-three trillion, four hundred three billion, seven hundred twenty-four million, fifty-two thousand, eleven".