11203224431 has 4 divisors (see below), whose sum is σ = 12803685072. Its totient is φ = 9602763792.

The previous prime is 11203224421. The next prime is 11203224433. The reversal of 11203224431 is 13442230211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13442230211 = 48341 ⋅278071.

It is a cyclic number.

It is not a de Polignac number, because 11203224431 - 2⁶ = 11203224367 is a prime.

It is a super-2 number, since 2×11203224431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203224397 and 11203224406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203224433) 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, 800230310 + ... + 800230323.

It is an arithmetic number, because the mean of its divisors is an integer number (3200921268).

Almost surely, 2^11203224431 is an apocalyptic number.

11203224431 is a deficient number, since it is larger than the sum of its proper divisors (1600460641).

11203224431 is an equidigital number, since it uses as much as digits as its factorization.

11203224431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600460640.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11203224431 its reverse (13442230211), we get a palindrome (24645454642).

The spelling of 11203224431 in words is "eleven billion, two hundred three million, two hundred twenty-four thousand, four hundred thirty-one".