1220303042 has 16 divisors (see below), whose sum is σ = 2182902912. Its totient is φ = 500248320.

The previous prime is 1220303033. The next prime is 1220303047. The reversal of 1220303042 is 2403030221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220303042.

It is not an unprimeable number, because it can be changed into a prime (1220303047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1894559 + ... + 1895202.

It is an arithmetic number, because the mean of its divisors is an integer number (136431432).

Almost surely, 2^1220303042 is an apocalyptic number.

1220303042 is a deficient number, since it is larger than the sum of its proper divisors (962599870).

1220303042 is a wasteful number, since it uses less digits than its factorization.

1220303042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789793.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220303042 is about 34932.8361574035. The cubic root of 1220303042 is about 1068.6181953345.

Adding to 1220303042 its reverse (2403030221), we get a palindrome (3623333263).

The spelling of 1220303042 in words is "one billion, two hundred twenty million, three hundred three thousand, forty-two".