1263406301 has 2 divisors, whose sum is σ = 1263406302. Its totient is φ = 1263406300.

The previous prime is 1263406237. The next prime is 1263406303. The reversal of 1263406301 is 1036043621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258120900 + 5285401 = 35470^2 + 2299^2 .

It is an emirp because it is prime and its reverse (1036043621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1263406301 - 2⁶ = 1263406237 is a prime.

Together with 1263406303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263406303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631703150 + 631703151.

It is an arithmetic number, because the mean of its divisors is an integer number (631703151).

Almost surely, 2^1263406301 is an apocalyptic number.

It is an amenable number.

1263406301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263406301 is an equidigital number, since it uses as much as digits as its factorization.

1263406301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1263406301 is about 35544.4271440686. The cubic root of 1263406301 is about 1081.0547255092.

Adding to 1263406301 its reverse (1036043621), we get a palindrome (2299449922).

The spelling of 1263406301 in words is "one billion, two hundred sixty-three million, four hundred six thousand, three hundred one".