1224202313 has 16 divisors (see below), whose sum is σ = 1291253376. Its totient is φ = 1159090560.

The previous prime is 1224202297. The next prime is 1224202339. The reversal of 1224202313 is 3132024221.

It is a cyclic number.

It is not a de Polignac number, because 1224202313 - 2⁴ = 1224202297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224202513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792620 + ... + 794162.

It is an arithmetic number, because the mean of its divisors is an integer number (80703336).

Almost surely, 2^1224202313 is an apocalyptic number.

It is an amenable number.

1224202313 is a deficient number, since it is larger than the sum of its proper divisors (67051063).

1224202313 is a wasteful number, since it uses less digits than its factorization.

1224202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1224202313 is about 34988.6026157090. The cubic root of 1224202313 is about 1069.7551811277.

Adding to 1224202313 its reverse (3132024221), we get a palindrome (4356226534).

The spelling of 1224202313 in words is "one billion, two hundred twenty-four million, two hundred two thousand, three hundred thirteen".