23452154521111 has 4 divisors (see below), whose sum is σ = 23459673650400. Its totient is φ = 23444635391824.

The previous prime is 23452154521109. The next prime is 23452154521207. The reversal of 23452154521111 is 11112545125432.

It is a happy number.

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 23452154521111 - 2¹ = 23452154521109 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 (23452154521511) 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, 3759559966 + ... + 3759566203.

It is an arithmetic number, because the mean of its divisors is an integer number (5864918412600).

Almost surely, 2^{23452154521111} is an apocalyptic number.

23452154521111 is a deficient number, since it is larger than the sum of its proper divisors (7519129289).

23452154521111 is an equidigital number, since it uses as much as digits as its factorization.

23452154521111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519129288.

The product of its digits is 48000, while the sum is 37.

Adding to 23452154521111 its reverse (11112545125432), we get a palindrome (34564699646543).

The spelling of 23452154521111 in words is "twenty-three trillion, four hundred fifty-two billion, one hundred fifty-four million, five hundred twenty-one thousand, one hundred eleven".