1220503430 has 8 divisors (see below), whose sum is σ = 2196906192. Its totient is φ = 488201368.

The previous prime is 1220503397. The next prime is 1220503477. The reversal of 1220503430 is 343050221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61025162 + ... + 61025181.

It is an arithmetic number, because the mean of its divisors is an integer number (274613274).

Almost surely, 2^1220503430 is an apocalyptic number.

1220503430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220503430 is a deficient number, since it is larger than the sum of its proper divisors (976402762).

1220503430 is a wasteful number, since it uses less digits than its factorization.

1220503430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122050350.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1220503430 is about 34935.7042293411. The cubic root of 1220503430 is about 1068.6766853257.

Adding to 1220503430 its reverse (343050221), we get a palindrome (1563553651).

The spelling of 1220503430 in words is "one billion, two hundred twenty million, five hundred three thousand, four hundred thirty".