4000001263 has 2 divisors, whose sum is σ = 4000001264. Its totient is φ = 4000001262.

The previous prime is 4000001261. The next prime is 4000001297. The reversal of 4000001263 is 3621000004.

4000001263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4000001263 - 2¹ = 4000001261 is a prime.

Together with 4000001261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4000001261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000000631 + 2000000632.

It is an arithmetic number, because the mean of its divisors is an integer number (2000000632).

Almost surely, 2^4000001263 is an apocalyptic number.

4000001263 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000001263 is an equidigital number, since it uses as much as digits as its factorization.

4000001263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 4000001263 is about 63245.5631882585. The cubic root of 4000001263 is about 1587.4012190421.

Adding to 4000001263 its reverse (3621000004), we get a palindrome (7621001267).

The spelling of 4000001263 in words is "four billion, one thousand, two hundred sixty-three".