1421370263 has 2 divisors, whose sum is σ = 1421370264. Its totient is φ = 1421370262.

The previous prime is 1421370257. The next prime is 1421370283. The reversal of 1421370263 is 3620731241.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3620731241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1421370263 - 2⁶ = 1421370199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421370283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710685131 + 710685132.

It is an arithmetic number, because the mean of its divisors is an integer number (710685132).

Almost surely, 2^1421370263 is an apocalyptic number.

1421370263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421370263 is an equidigital number, since it uses as much as digits as its factorization.

1421370263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1421370263 is about 37701.0644809931. The cubic root of 1421370263 is about 1124.3522890165.

The spelling of 1421370263 in words is "one billion, four hundred twenty-one million, three hundred seventy thousand, two hundred sixty-three".