123413331500 has 144 divisors (see below), whose sum is σ = 286280772960. Its totient is φ = 46348848000.

The previous prime is 123413331463. The next prime is 123413331523. The reversal of 123413331500 is 5133314321.

It is a self number, because there is not a number n which added to its sum of digits gives 123413331500.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 163029122 + ... + 163029878.

Almost surely, 2^123413331500 is an apocalyptic number.

123413331500 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 123413331500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143140386480).

123413331500 is an abundant number, since it is smaller than the sum of its proper divisors (162867441460).

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

123413331500 is a wasteful number, since it uses less digits than its factorization.

123413331500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057 (or 914 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 123413331500 its reverse (5133314321), we get a palindrome (128546645821).

The spelling of 123413331500 in words is "one hundred twenty-three billion, four hundred thirteen million, three hundred thirty-one thousand, five hundred".