11225531243 has 4 divisors (see below), whose sum is σ = 11297031600. Its totient is φ = 11154030888.

The previous prime is 11225531231. The next prime is 11225531293. The reversal of 11225531243 is 34213552211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34213552211 = 67 ⋅510650033.

It is a cyclic number.

It is not a de Polignac number, because 11225531243 - 2²⁰ = 11224482667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11225531203) 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, 35749943 + ... + 35750256.

It is an arithmetic number, because the mean of its divisors is an integer number (2824257900).

Almost surely, 2^11225531243 is an apocalyptic number.

11225531243 is a deficient number, since it is larger than the sum of its proper divisors (71500357).

11225531243 is an equidigital number, since it uses as much as digits as its factorization.

11225531243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71500356.

The product of its digits is 7200, while the sum is 29.

The spelling of 11225531243 in words is "eleven billion, two hundred twenty-five million, five hundred thirty-one thousand, two hundred forty-three".