12303020032 has 52 divisors (see below), whose sum is σ = 24641607816. Its totient is φ = 6141870080.

The previous prime is 12303020029. The next prime is 12303020053. The reversal of 12303020032 is 23002030321.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12303019988 and 12303020015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3115083 + ... + 3119029.

Almost surely, 2^12303020032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12303020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12320803908).

12303020032 is an abundant number, since it is smaller than the sum of its proper divisors (12338587784).

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

12303020032 is an frugal number, since it uses more digits than its factorization.

12303020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732 (or 4710 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 12303020032 its reverse (23002030321), we get a palindrome (35305050353).

The spelling of 12303020032 in words is "twelve billion, three hundred three million, twenty thousand, thirty-two".