123353140 has 48 divisors (see below), whose sum is σ = 271716480. Its totient is φ = 46949760.

The previous prime is 123353107. The next prime is 123353143. The reversal of 123353140 is 41353321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123353143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104755 + ... + 105925.

It is an arithmetic number, because the mean of its divisors is an integer number (5660760).

Almost surely, 2^123353140 is an apocalyptic number.

123353140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123353140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135858240).

123353140 is an abundant number, since it is smaller than the sum of its proper divisors (148363340).

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

123353140 is a wasteful number, since it uses less digits than its factorization.

123353140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1430 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 123353140 is about 11106.4458761568. The cubic root of 123353140 is about 497.7944722661.

The spelling of 123353140 in words is "one hundred twenty-three million, three hundred fifty-three thousand, one hundred forty".