12000031320012 has 48 divisors (see below), whose sum is σ = 28686877612512. Its totient is φ = 3901921873920.

The previous prime is 12000031319977. The next prime is 12000031320023. The reversal of 12000031320012 is 21002313000021.

It is a junction number, because it is equal to n+sod(n) for n = 12000031319973 and 12000031320000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2004948 + ... + 5293380.

It is an arithmetic number, because the mean of its divisors is an integer number (597643283594).

Almost surely, 2^{12000031320012} is an apocalyptic number.

12000031320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12000031320012 is an abundant number, since it is smaller than the sum of its proper divisors (16686846292500).

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

12000031320012 is a wasteful number, since it uses less digits than its factorization.

12000031320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295898 (or 3295896 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12000031320012 its reverse (21002313000021), we get a palindrome (33002344320033).

The spelling of 12000031320012 in words is "twelve trillion, thirty-one million, three hundred twenty thousand, twelve".