11223253123 has 4 divisors (see below), whose sum is σ = 11251523680. Its totient is φ = 11194982568.

The previous prime is 11223253117. The next prime is 11223253157. The reversal of 11223253123 is 32135232211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32135232211 = 107 ⋅300329273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223253123 is a prime.

It is a super-2 number, since 2×11223253123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11223253163) 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, 14134683 + ... + 14135476.

It is an arithmetic number, because the mean of its divisors is an integer number (2812880920).

Almost surely, 2^11223253123 is an apocalyptic number.

11223253123 is a deficient number, since it is larger than the sum of its proper divisors (28270557).

11223253123 is an equidigital number, since it uses as much as digits as its factorization.

11223253123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28270556.

The product of its digits is 2160, while the sum is 25.

Adding to 11223253123 its reverse (32135232211), we get a palindrome (43358485334).

The spelling of 11223253123 in words is "eleven billion, two hundred twenty-three million, two hundred fifty-three thousand, one hundred twenty-three".