1224020013 has 8 divisors (see below), whose sum is σ = 1666750848. Its totient is φ = 798651264.

The previous prime is 1224019999. The next prime is 1224020029. The reversal of 1224020013 is 3100204221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224020013 - 2¹² = 1224015917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1224019974 and 1224020001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4340356 + ... + 4340637.

It is an arithmetic number, because the mean of its divisors is an integer number (208343856).

Almost surely, 2^1224020013 is an apocalyptic number.

It is an amenable number.

1224020013 is a deficient number, since it is larger than the sum of its proper divisors (442730835).

1224020013 is an equidigital number, since it uses as much as digits as its factorization.

1224020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681043.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1224020013 is about 34985.9973846681. The cubic root of 1224020013 is about 1069.7020782354.

Adding to 1224020013 its reverse (3100204221), we get a palindrome (4324224234).

The spelling of 1224020013 in words is "one billion, two hundred twenty-four million, twenty thousand, thirteen".