1224301231 has 4 divisors (see below), whose sum is σ = 1224576792. Its totient is φ = 1224025672.

The previous prime is 1224301187. The next prime is 1224301237. The reversal of 1224301231 is 1321034221.

It is a happy number.

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 1224301231 - 2¹³ = 1224293039 is a prime.

It is a super-2 number, since 2×1224301231² = 2997827008456230722, 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 = 1224301199 and 1224301208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224301237) 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, 131005 + ... + 140038.

It is an arithmetic number, because the mean of its divisors is an integer number (306144198).

Almost surely, 2^1224301231 is an apocalyptic number.

1224301231 is a deficient number, since it is larger than the sum of its proper divisors (275561).

1224301231 is an equidigital number, since it uses as much as digits as its factorization.

1224301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275560.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1224301231 is about 34990.0161617568. The cubic root of 1224301231 is about 1069.7839931391.

Adding to 1224301231 its reverse (1321034221), we get a palindrome (2545335452).

The spelling of 1224301231 in words is "one billion, two hundred twenty-four million, three hundred one thousand, two hundred thirty-one".