23513452145111 has 4 divisors (see below), whose sum is σ = 24324260839800. Its totient is φ = 22702643450424.

The previous prime is 23513452145077. The next prime is 23513452145123. The reversal of 23513452145111 is 11154125431532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23513452145111 - 2¹⁸ = 23513451882967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513452142111) 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, 405404347301 + ... + 405404347358.

It is an arithmetic number, because the mean of its divisors is an integer number (6081065209950).

Almost surely, 2^{23513452145111} is an apocalyptic number.

23513452145111 is a deficient number, since it is larger than the sum of its proper divisors (810808694689).

23513452145111 is an equidigital number, since it uses as much as digits as its factorization.

23513452145111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810808694688.

The product of its digits is 72000, while the sum is 38.

Adding to 23513452145111 its reverse (11154125431532), we get a palindrome (34667577576643).

The spelling of 23513452145111 in words is "twenty-three trillion, five hundred thirteen billion, four hundred fifty-two million, one hundred forty-five thousand, one hundred eleven".