1263463403 has 2 divisors, whose sum is σ = 1263463404. Its totient is φ = 1263463402.

The previous prime is 1263463381. The next prime is 1263463427. The reversal of 1263463403 is 3043643621.

It is a weak prime.

It is an emirp because it is prime and its reverse (3043643621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1263463403 - 2²⁰ = 1262414827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1263463403.

It is not a weakly prime, because it can be changed into another prime (1263463483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631731701 + 631731702.

It is an arithmetic number, because the mean of its divisors is an integer number (631731702).

Almost surely, 2^1263463403 is an apocalyptic number.

1263463403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263463403 is an equidigital number, since it uses as much as digits as its factorization.

1263463403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 1263463403 is about 35545.2303832736. The cubic root of 1263463403 is about 1081.0710120242.

The spelling of 1263463403 in words is "one billion, two hundred sixty-three million, four hundred sixty-three thousand, four hundred three".