1220423303 has 6 divisors (see below), whose sum is σ = 1341457152. Its totient is φ = 1109475620.

The previous prime is 1220423293. The next prime is 1220423381. The reversal of 1220423303 is 3033240221.

It is not a de Polignac number, because 1220423303 - 2⁴ = 1220423287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220423003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5042951 + ... + 5043192.

It is an arithmetic number, because the mean of its divisors is an integer number (223576192).

Almost surely, 2^1220423303 is an apocalyptic number.

1220423303 is a deficient number, since it is larger than the sum of its proper divisors (121033849).

1220423303 is a wasteful number, since it uses less digits than its factorization.

1220423303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086165 (or 10086154 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1220423303 is about 34934.5574324336. The cubic root of 1220423303 is about 1068.6532983286.

Adding to 1220423303 its reverse (3033240221), we get a palindrome (4253663524).

The spelling of 1220423303 in words is "one billion, two hundred twenty million, four hundred twenty-three thousand, three hundred three".