123040710 has 96 divisors (see below), whose sum is σ = 348199488. Its totient is φ = 29963520.

The previous prime is 123040699. The next prime is 123040711. The reversal of 123040710 is 17040321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123040711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120000 + ... + 121020.

It is an arithmetic number, because the mean of its divisors is an integer number (3627078).

Almost surely, 2^123040710 is an apocalyptic number.

123040710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123040710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174099744).

123040710 is an abundant number, since it is smaller than the sum of its proper divisors (225158778).

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

123040710 is a wasteful number, since it uses less digits than its factorization.

123040710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 123040710 is about 11092.3717031120. The cubic root of 123040710 is about 497.3738440927.

The spelling of 123040710 in words is "one hundred twenty-three million, forty thousand, seven hundred ten".