123342261 has 36 divisors (see below), whose sum is σ = 200674656. Its totient is φ = 67063920.

The previous prime is 123342257. The next prime is 123342299. The reversal of 123342261 is 162243321.

It is not a de Polignac number, because 123342261 - 2² = 123342257 is a prime.

It is a super-3 number, since 3×123342261³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123342251) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 645676 + ... + 645866.

It is an arithmetic number, because the mean of its divisors is an integer number (5574296).

Almost surely, 2^123342261 is an apocalyptic number.

It is an amenable number.

123342261 is a deficient number, since it is larger than the sum of its proper divisors (77332395).

123342261 is an equidigital number, since it uses as much as digits as its factorization.

123342261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 224 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 123342261 is about 11105.9561047215. The cubic root of 123342261 is about 497.7798376832.

Adding to 123342261 its reverse (162243321), we get a palindrome (285585582).

The spelling of 123342261 in words is "one hundred twenty-three million, three hundred forty-two thousand, two hundred sixty-one".