123501330 has 48 divisors (see below), whose sum is σ = 338008320. Its totient is φ = 31199904.

The previous prime is 123501299. The next prime is 123501331. The reversal of 123501330 is 33105321.

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

It is not an unprimeable number, because it can be changed into a prime (123501331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34402 + ... + 37821.

It is an arithmetic number, because the mean of its divisors is an integer number (7041840).

Almost surely, 2^123501330 is an apocalyptic number.

123501330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123501330 is an abundant number, since it is smaller than the sum of its proper divisors (214506990).

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

123501330 is a wasteful number, since it uses less digits than its factorization.

123501330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72255 (or 72252 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 123501330 is about 11113.1152248143. The cubic root of 123501330 is about 497.9937338932.

Adding to 123501330 its reverse (33105321), we get a palindrome (156606651).

The spelling of 123501330 in words is "one hundred twenty-three million, five hundred one thousand, three hundred thirty".