1220040303 has 8 divisors (see below), whose sum is σ = 1630118400. Its totient is φ = 811661208.

The previous prime is 1220040301. The next prime is 1220040347. The reversal of 1220040303 is 3030400221.

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

It is not a de Polignac number, because 1220040303 - 2¹ = 1220040301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220040301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423073 + ... + 425946.

It is an arithmetic number, because the mean of its divisors is an integer number (203764800).

Almost surely, 2^1220040303 is an apocalyptic number.

1220040303 is a deficient number, since it is larger than the sum of its proper divisors (410078097).

1220040303 is an equidigital number, since it uses as much as digits as its factorization.

1220040303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849501.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1220040303 is about 34929.0753241479. The cubic root of 1220040303 is about 1068.5414964001.

Adding to 1220040303 its reverse (3030400221), we get a palindrome (4250440524).

The spelling of 1220040303 in words is "one billion, two hundred twenty million, forty thousand, three hundred three".