1220240303 has 2 divisors, whose sum is σ = 1220240304. Its totient is φ = 1220240302.

The previous prime is 1220240299. The next prime is 1220240327. The reversal of 1220240303 is 3030420221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220240303 - 2² = 1220240299 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220240803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610120151 + 610120152.

It is an arithmetic number, because the mean of its divisors is an integer number (610120152).

Almost surely, 2^1220240303 is an apocalyptic number.

1220240303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220240303 is an equidigital number, since it uses as much as digits as its factorization.

1220240303 is an evil number, because the sum of its binary digits is even.

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

The square root of 1220240303 is about 34931.9381512106. The cubic root of 1220240303 is about 1068.5998815267.

Adding to 1220240303 its reverse (3030420221), we get a palindrome (4250660524).

The spelling of 1220240303 in words is "one billion, two hundred twenty million, two hundred forty thousand, three hundred three".