11224115231 has 4 divisors (see below), whose sum is σ = 12827560272. Its totient is φ = 9620670192.

The previous prime is 11224115213. The next prime is 11224115237. The reversal of 11224115231 is 13251142211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13251142211 = 1063 ⋅12465797.

It is a de Polignac number, because none of the positive numbers 2^k-11224115231 is a prime.

It is a super-2 number, since 2×11224115231² (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 = 11224115197 and 11224115206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11224115237) 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, 801722510 + ... + 801722523.

It is an arithmetic number, because the mean of its divisors is an integer number (3206890068).

Almost surely, 2^11224115231 is an apocalyptic number.

11224115231 is a deficient number, since it is larger than the sum of its proper divisors (1603445041).

11224115231 is an equidigital number, since it uses as much as digits as its factorization.

11224115231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603445040.

The product of its digits is 480, while the sum is 23.

Adding to 11224115231 its reverse (13251142211), we get a palindrome (24475257442).

The spelling of 11224115231 in words is "eleven billion, two hundred twenty-four million, one hundred fifteen thousand, two hundred thirty-one".