123241340 has 24 divisors (see below), whose sum is σ = 259385280. Its totient is φ = 49186368.

The previous prime is 123241331. The next prime is 123241351. The reversal of 123241340 is 43142321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2606 + ... + 15914.

It is an arithmetic number, because the mean of its divisors is an integer number (10807720).

Almost surely, 2^123241340 is an apocalyptic number.

123241340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123241340 is an abundant number, since it is smaller than the sum of its proper divisors (136143940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123241340 is a wasteful number, since it uses less digits than its factorization.

123241340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13781 (or 13779 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123241340 is about 11101.4116219515. The cubic root of 123241340 is about 497.6440363061.

Adding to 123241340 its reverse (43142321), we get a palindrome (166383661).

The spelling of 123241340 in words is "one hundred twenty-three million, two hundred forty-one thousand, three hundred forty".