1224413231 has 4 divisors (see below), whose sum is σ = 1263910464. Its totient is φ = 1184916000.

The previous prime is 1224413207. The next prime is 1224413269. The reversal of 1224413231 is 1323144221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1224413231 - 2²² = 1220218927 is a prime.

It is a super-2 number, since 2×1224413231² = 2998375520495718722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1224413197 and 1224413206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224416231) 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, 19748570 + ... + 19748631.

It is an arithmetic number, because the mean of its divisors is an integer number (315977616).

Almost surely, 2^1224413231 is an apocalyptic number.

1224413231 is a deficient number, since it is larger than the sum of its proper divisors (39497233).

1224413231 is an equidigital number, since it uses as much as digits as its factorization.

1224413231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39497232.

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

The square root of 1224413231 is about 34991.6165816900. The cubic root of 1224413231 is about 1069.8166136932.

Adding to 1224413231 its reverse (1323144221), we get a palindrome (2547557452).

The spelling of 1224413231 in words is "one billion, two hundred twenty-four million, four hundred thirteen thousand, two hundred thirty-one".