263105023 has 4 divisors (see below), whose sum is σ = 272177640. Its totient is φ = 254032408.

The previous prime is 263105021. The next prime is 263105033. The reversal of 263105023 is 320501362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 263105023 - 2¹ = 263105021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263104985 and 263105003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263105021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4536265 + ... + 4536322.

It is an arithmetic number, because the mean of its divisors is an integer number (68044410).

Almost surely, 2^263105023 is an apocalyptic number.

263105023 is a deficient number, since it is larger than the sum of its proper divisors (9072617).

263105023 is an equidigital number, since it uses as much as digits as its factorization.

263105023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072616.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 263105023 is about 16220.5124148407. The cubic root of 263105023 is about 640.7811287533.

Adding to 263105023 its reverse (320501362), we get a palindrome (583606385).

The spelling of 263105023 in words is "two hundred sixty-three million, one hundred five thousand, twenty-three".