123842263 has 8 divisors (see below), whose sum is σ = 134326080. Its totient is φ = 113713920.

The previous prime is 123842233. The next prime is 123842287. The reversal of 123842263 is 362248321.

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 123842263 - 2⁵ = 123842231 is a prime.

It is a super-2 number, since 2×123842263² = 30673812209922338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123842233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88143 + ... + 89536.

It is an arithmetic number, because the mean of its divisors is an integer number (16790760).

Almost surely, 2^123842263 is an apocalyptic number.

123842263 is a deficient number, since it is larger than the sum of its proper divisors (10483817).

123842263 is a wasteful number, since it uses less digits than its factorization.

123842263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177737.

The product of its digits is 13824, while the sum is 31.

The square root of 123842263 is about 11128.4438714494. The cubic root of 123842263 is about 498.4515602858.

The spelling of 123842263 in words is "one hundred twenty-three million, eight hundred forty-two thousand, two hundred sixty-three".