1263104123 has 2 divisors, whose sum is σ = 1263104124. Its totient is φ = 1263104122.

The previous prime is 1263104119. The next prime is 1263104153. The reversal of 1263104123 is 3214013621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1263104123 - 2² = 1263104119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1263104153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631552061 + 631552062.

It is an arithmetic number, because the mean of its divisors is an integer number (631552062).

Almost surely, 2^1263104123 is an apocalyptic number.

1263104123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263104123 is an equidigital number, since it uses as much as digits as its factorization.

1263104123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1263104123 is about 35540.1761813303. The cubic root of 1263104123 is about 1080.9685307509.

Adding to 1263104123 its reverse (3214013621), we get a palindrome (4477117744).

The spelling of 1263104123 in words is "one billion, two hundred sixty-three million, one hundred four thousand, one hundred twenty-three".