1203221013 has 8 divisors (see below), whose sum is σ = 1604693376. Its totient is φ = 801948000.

The previous prime is 1203220943. The next prime is 1203221021. The reversal of 1203221013 is 3101223021.

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

It is not a de Polignac number, because 1203221013 - 2⁸ = 1203220757 is a prime.

It is a super-2 number, since 2×1203221013² = 2895481612249492338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203220983 and 1203221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203221023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35133 + ... + 60338.

It is an arithmetic number, because the mean of its divisors is an integer number (200586672).

Almost surely, 2^1203221013 is an apocalyptic number.

It is an amenable number.

1203221013 is a deficient number, since it is larger than the sum of its proper divisors (401472363).

1203221013 is an equidigital number, since it uses as much as digits as its factorization.

1203221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99675.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1203221013 is about 34687.4763135054. The cubic root of 1203221013 is about 1063.6085078281.

Adding to 1203221013 its reverse (3101223021), we get a palindrome (4304444034).

The spelling of 1203221013 in words is "one billion, two hundred three million, two hundred twenty-one thousand, thirteen".