1220203303 has 8 divisors (see below), whose sum is σ = 1362087936. Its totient is φ = 1083478200.

The previous prime is 1220203297. The next prime is 1220203349. The reversal of 1220203303 is 3033020221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220203303 - 2²⁵ = 1186648871 is a prime.

It is a super-2 number, since 2×1220203303² = 2977792201304219618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220203393) 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, 1289383 + ... + 1290328.

It is an arithmetic number, because the mean of its divisors is an integer number (170260992).

Almost surely, 2^1220203303 is an apocalyptic number.

1220203303 is a deficient number, since it is larger than the sum of its proper divisors (141884633).

1220203303 is a wasteful number, since it uses less digits than its factorization.

1220203303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579765.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1220203303 is about 34931.4085458918. The cubic root of 1220203303 is about 1068.5890807593.

Adding to 1220203303 its reverse (3033020221), we get a palindrome (4253223524).

The spelling of 1220203303 in words is "one billion, two hundred twenty million, two hundred three thousand, three hundred three".