12031303120 has 40 divisors (see below), whose sum is σ = 29445035040. Its totient is φ = 4559230080.

The previous prime is 12031303103. The next prime is 12031303133. The reversal of 12031303120 is 2130313021.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 12031303094 and 12031303103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3956146 + ... + 3959185.

It is an arithmetic number, because the mean of its divisors is an integer number (736125876).

Almost surely, 2^12031303120 is an apocalyptic number.

12031303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031303120 is an abundant number, since it is smaller than the sum of its proper divisors (17413731920).

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

12031303120 is a wasteful number, since it uses less digits than its factorization.

12031303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915363 (or 7915357 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12031303120 its reverse (2130313021), we get a palindrome (14161616141).

Subtracting from 12031303120 its reverse (2130313021), we obtain a palindrome (9900990099).

The spelling of 12031303120 in words is "twelve billion, thirty-one million, three hundred three thousand, one hundred twenty".