1421042503 has 2 divisors, whose sum is σ = 1421042504. Its totient is φ = 1421042502.

The previous prime is 1421042479. The next prime is 1421042507. The reversal of 1421042503 is 3052401241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421042503 - 2⁹ = 1421041991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421042507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710521251 + 710521252.

It is an arithmetic number, because the mean of its divisors is an integer number (710521252).

Almost surely, 2^1421042503 is an apocalyptic number.

1421042503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421042503 is an equidigital number, since it uses as much as digits as its factorization.

1421042503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1421042503 is about 37696.7174035088. The cubic root of 1421042503 is about 1124.2658592650.

Adding to 1421042503 its reverse (3052401241), we get a palindrome (4473443744).

The spelling of 1421042503 in words is "one billion, four hundred twenty-one million, forty-two thousand, five hundred three".