263563065316123 has 4 divisors (see below), whose sum is σ = 266280210319480. Its totient is φ = 260845920312768.

The previous prime is 263563065316097. The next prime is 263563065316231. The reversal of 263563065316123 is 321613560365362.

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 263563065316123 - 2¹⁷ = 263563065185051 is a prime.

It is a super-2 number, since 2×263563065316123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263563065316723) 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, 1358572501533 + ... + 1358572501726.

It is an arithmetic number, because the mean of its divisors is an integer number (66570052579870).

Almost surely, 2^{263563065316123} is an apocalyptic number.

263563065316123 is a deficient number, since it is larger than the sum of its proper divisors (2717145003357).

263563065316123 is an equidigital number, since it uses as much as digits as its factorization.

263563065316123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717145003356.

The product of its (nonzero) digits is 10497600, while the sum is 52.

The spelling of 263563065316123 in words is "two hundred sixty-three trillion, five hundred sixty-three billion, sixty-five million, three hundred sixteen thousand, one hundred twenty-three".