1220302403 has 2 divisors, whose sum is σ = 1220302404. Its totient is φ = 1220302402.

The previous prime is 1220302399. The next prime is 1220302409. The reversal of 1220302403 is 3042030221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220302403 - 2² = 1220302399 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220302409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610151201 + 610151202.

It is an arithmetic number, because the mean of its divisors is an integer number (610151202).

Almost surely, 2^1220302403 is an apocalyptic number.

1220302403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220302403 is an equidigital number, since it uses as much as digits as its factorization.

1220302403 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 1220302403 is about 34932.8270112798. The cubic root of 1220302403 is about 1068.6180088105.

Adding to 1220302403 its reverse (3042030221), we get a palindrome (4262332624).

The spelling of 1220302403 in words is "one billion, two hundred twenty million, three hundred two thousand, four hundred three".