1042221403 has 2 divisors, whose sum is σ = 1042221404. Its totient is φ = 1042221402.

The previous prime is 1042221377. The next prime is 1042221419. The reversal of 1042221403 is 3041222401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042221403 - 2⁹ = 1042220891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042221473) by changing a digit.

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 as a sum of consecutive naturals, namely, 521110701 + 521110702.

It is an arithmetic number, because the mean of its divisors is an integer number (521110702).

Almost surely, 2^1042221403 is an apocalyptic number.

1042221403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042221403 is an equidigital number, since it uses as much as digits as its factorization.

1042221403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1042221403 is about 32283.4540128531. The cubic root of 1042221403 is about 1013.8802483113.

Adding to 1042221403 its reverse (3041222401), we get a palindrome (4083443804).

It can be divided in two parts, 104222 and 1403, that added together give a square (105625 = 325²).

The spelling of 1042221403 in words is "one billion, forty-two million, two hundred twenty-one thousand, four hundred three".