123263 has 4 divisors (see below), whose sum is σ = 140880. Its totient is φ = 105648.

The previous prime is 123259. The next prime is 123269. The reversal of 123263 is 362321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362321 = 17 ⋅21313.

It is a cyclic number.

It is not a de Polignac number, because 123263 - 2² = 123259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123269) 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, 8798 + ... + 8811.

It is an arithmetic number, because the mean of its divisors is an integer number (35220).

2¹²³²⁶³ is an apocalyptic number.

123263 is a deficient number, since it is larger than the sum of its proper divisors (17617).

123263 is an equidigital number, since it uses as much as digits as its factorization.

123263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17616.

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

The square root of 123263 is about 351.0883079796. The cubic root of 123263 is about 49.7673188695.

Adding to 123263 its reverse (362321), we get a palindrome (485584).

The spelling of 123263 in words is "one hundred twenty-three thousand, two hundred sixty-three".