1421072603 has 2 divisors, whose sum is σ = 1421072604. Its totient is φ = 1421072602.

The previous prime is 1421072593. The next prime is 1421072617. The reversal of 1421072603 is 3062701241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421072603 - 2¹⁸ = 1420810459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421072203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710536301 + 710536302.

It is an arithmetic number, because the mean of its divisors is an integer number (710536302).

Almost surely, 2^1421072603 is an apocalyptic number.

1421072603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421072603 is an equidigital number, since it uses as much as digits as its factorization.

1421072603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1421072603 is about 37697.1166404010. The cubic root of 1421072603 is about 1124.2737971377.

Adding to 1421072603 its reverse (3062701241), we get a palindrome (4483773844).

The spelling of 1421072603 in words is "one billion, four hundred twenty-one million, seventy-two thousand, six hundred three".