11542251223 has 4 divisors (see below), whose sum is σ = 11559766680. Its totient is φ = 11524735768.

The previous prime is 11542251181. The next prime is 11542251239. The reversal of 11542251223 is 32215224511.

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 11542251223 - 2¹⁷ = 11542120151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11542251191 and 11542251200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542251283) 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, 8756740 + ... + 8758057.

It is an arithmetic number, because the mean of its divisors is an integer number (2889941670).

Almost surely, 2^11542251223 is an apocalyptic number.

11542251223 is a deficient number, since it is larger than the sum of its proper divisors (17515457).

11542251223 is an equidigital number, since it uses as much as digits as its factorization.

11542251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515456.

The product of its digits is 4800, while the sum is 28.

Adding to 11542251223 its reverse (32215224511), we get a palindrome (43757475734).

The spelling of 11542251223 in words is "eleven billion, five hundred forty-two million, two hundred fifty-one thousand, two hundred twenty-three".