123040263 has 8 divisors (see below), whose sum is σ = 165587328. Its totient is φ = 81260024.

The previous prime is 123040241. The next prime is 123040273. The reversal of 123040263 is 362040321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123040263 - 2⁶ = 123040199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123040213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191331 + ... + 191972.

It is an arithmetic number, because the mean of its divisors is an integer number (20698416).

Almost surely, 2^123040263 is an apocalyptic number.

123040263 is a deficient number, since it is larger than the sum of its proper divisors (42547065).

123040263 is a wasteful number, since it uses less digits than its factorization.

123040263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383413.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123040263 is about 11092.3515541115. The cubic root of 123040263 is about 497.3732417815.

Adding to 123040263 its reverse (362040321), we get a palindrome (485080584).

The spelling of 123040263 in words is "one hundred twenty-three million, forty thousand, two hundred sixty-three".