123343140 has 24 divisors (see below), whose sum is σ = 345360960. Its totient is φ = 32891488.

The previous prime is 123343133. The next prime is 123343147. The reversal of 123343140 is 41343321.

It is an interprime number because it is at equal distance from previous prime (123343133) and next prime (123343147).

It is not an unprimeable number, because it can be changed into a prime (123343147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027800 + ... + 1027919.

It is an arithmetic number, because the mean of its divisors is an integer number (14390040).

Almost surely, 2^123343140 is an apocalyptic number.

123343140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123343140 is an abundant number, since it is smaller than the sum of its proper divisors (222017820).

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

123343140 is a wasteful number, since it uses less digits than its factorization.

123343140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055731 (or 2055729 counting only the distinct ones).

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

The square root of 123343140 is about 11105.9956780110. The cubic root of 123343140 is about 497.7810201582.

Adding to 123343140 its reverse (41343321), we get a palindrome (164686461).

The spelling of 123343140 in words is "one hundred twenty-three million, three hundred forty-three thousand, one hundred forty".