11223141523 has 4 divisors (see below), whose sum is σ = 12243427128. Its totient is φ = 10202855920.

The previous prime is 11223141493. The next prime is 11223141533. The reversal of 11223141523 is 32514132211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32514132211 = 11 ⋅2955830201.

It is a cyclic number.

It is not a de Polignac number, because 11223141523 - 2²⁹ = 10686270611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11223141533) 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, 510142786 + ... + 510142807.

It is an arithmetic number, because the mean of its divisors is an integer number (3060856782).

Almost surely, 2^11223141523 is an apocalyptic number.

11223141523 is a deficient number, since it is larger than the sum of its proper divisors (1020285605).

11223141523 is a wasteful number, since it uses less digits than its factorization.

11223141523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020285604.

The product of its digits is 1440, while the sum is 25.

Adding to 11223141523 its reverse (32514132211), we get a palindrome (43737273734).

The spelling of 11223141523 in words is "eleven billion, two hundred twenty-three million, one hundred forty-one thousand, five hundred twenty-three".