13542231223 has 4 divisors (see below), whose sum is σ = 13592574360. Its totient is φ = 13491888088.

The previous prime is 13542231191. The next prime is 13542231233. The reversal of 13542231223 is 32213224531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32213224531 = 1471 ⋅21898861.

It is a cyclic number.

It is not a de Polignac number, because 13542231223 - 2⁵ = 13542231191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13542231191 and 13542231200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13542231233) 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, 25171165 + ... + 25171702.

It is an arithmetic number, because the mean of its divisors is an integer number (3398143590).

Almost surely, 2^13542231223 is an apocalyptic number.

13542231223 is a deficient number, since it is larger than the sum of its proper divisors (50343137).

13542231223 is an equidigital number, since it uses as much as digits as its factorization.

13542231223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50343136.

The product of its digits is 8640, while the sum is 28.

Adding to 13542231223 its reverse (32213224531), we get a palindrome (45755455754).

The spelling of 13542231223 in words is "thirteen billion, five hundred forty-two million, two hundred thirty-one thousand, two hundred twenty-three".