123261263 has 8 divisors (see below), whose sum is σ = 126469200. Its totient is φ = 120068928.

The previous prime is 123261241. The next prime is 123261269. The reversal of 123261263 is 362162321.

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 123261263 - 2¹⁶ = 123195727 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 (123261269) 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, 13043 + ... + 20411.

It is an arithmetic number, because the mean of its divisors is an integer number (15808650).

Almost surely, 2^123261263 is an apocalyptic number.

123261263 is a deficient number, since it is larger than the sum of its proper divisors (3207937).

123261263 is an equidigital number, since it uses as much as digits as its factorization.

123261263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7801.

The product of its digits is 2592, while the sum is 26.

The square root of 123261263 is about 11102.3089040073. The cubic root of 123261263 is about 497.6708509770.

The spelling of 123261263 in words is "one hundred twenty-three million, two hundred sixty-one thousand, two hundred sixty-three".