12305033100 has 108 divisors (see below), whose sum is σ = 38701908336. Its totient is φ = 3270072960.

The previous prime is 12305033071. The next prime is 12305033141. The reversal of 12305033100 is 133050321.

It is a super-2 number, since 2×12305033100² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 240369 + ... + 287031.

Almost surely, 2^12305033100 is an apocalyptic number.

12305033100 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 12305033100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19350954168).

12305033100 is an abundant number, since it is smaller than the sum of its proper divisors (26396875236).

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

12305033100 is a wasteful number, since it uses less digits than its factorization.

12305033100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46976 (or 46966 counting only the distinct ones).

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

Adding to 12305033100 its reverse (133050321), we get a palindrome (12438083421).

The spelling of 12305033100 in words is "twelve billion, three hundred five million, thirty-three thousand, one hundred".