123003512300 has 18 divisors (see below), whose sum is σ = 266917621908. Its totient is φ = 49201404880.

The previous prime is 123003512297. The next prime is 123003512309. The reversal of 123003512300 is 3215300321.

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

It is not an unprimeable number, because it can be changed into a prime (123003512309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 615017462 + ... + 615017661.

Almost surely, 2^123003512300 is an apocalyptic number.

123003512300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123003512300 is an abundant number, since it is smaller than the sum of its proper divisors (143914109608).

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

123003512300 is a wasteful number, since it uses less digits than its factorization.

123003512300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230035137 (or 1230035130 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 123003512300 its reverse (3215300321), we get a palindrome (126218812621).

The spelling of 123003512300 in words is "one hundred twenty-three billion, three million, five hundred twelve thousand, three hundred".