12057303500 has 96 divisors (see below), whose sum is σ = 28921838400. Its totient is φ = 4354752000.

The previous prime is 12057303487. The next prime is 12057303527. The reversal of 12057303500 is 530375021.

It is a super-2 number, since 2×12057303500² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12057303500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812144 + ... + 826856.

It is an arithmetic number, because the mean of its divisors is an integer number (301269150).

Almost surely, 2^12057303500 is an apocalyptic number.

12057303500 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 12057303500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14460919200).

12057303500 is an abundant number, since it is smaller than the sum of its proper divisors (16864534900).

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

12057303500 is a wasteful number, since it uses less digits than its factorization.

12057303500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14892 (or 14880 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 26.

Adding to 12057303500 its reverse (530375021), we get a palindrome (12587678521).

The spelling of 12057303500 in words is "twelve billion, fifty-seven million, three hundred three thousand, five hundred".