263000123 has 2 divisors, whose sum is σ = 263000124. Its totient is φ = 263000122.

The previous prime is 263000119. The next prime is 263000131. The reversal of 263000123 is 321000362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263000123 - 2² = 263000119 is a prime.

It is not a weakly prime, because it can be changed into another prime (263005123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131500061 + 131500062.

It is an arithmetic number, because the mean of its divisors is an integer number (131500062).

Almost surely, 2^263000123 is an apocalyptic number.

263000123 is the 8669-th centered heptagonal number.

263000123 is a deficient number, since it is larger than the sum of its proper divisors (1).

263000123 is an equidigital number, since it uses as much as digits as its factorization.

263000123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 263000123 is about 16217.2785324789. The cubic root of 263000123 is about 640.6959575989.

Adding to 263000123 its reverse (321000362), we get a palindrome (584000485).

The spelling of 263000123 in words is "two hundred sixty-three million, one hundred twenty-three", and thus it is an aban number.