1263103 has 2 divisors, whose sum is σ = 1263104. Its totient is φ = 1263102.

The previous prime is 1263079. The next prime is 1263107. The reversal of 1263103 is 3013621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1263103 - 2⁵ = 1263071 is a prime.

1263103 is a lucky number.

It is a plaindrome in base 9 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631551 + 631552.

It is an arithmetic number, because the mean of its divisors is an integer number (631552).

2^1263103 is an apocalyptic number.

1263103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263103 is an equidigital number, since it uses as much as digits as its factorization.

1263103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1263103 is about 1123.8785521577. The cubic root of 1263103 is about 108.0968210395.

Adding to 1263103 its reverse (3013621), we get a palindrome (4276724).

The spelling of 1263103 in words is "one million, two hundred sixty-three thousand, one hundred three".