12481311812 has 48 divisors (see below), whose sum is σ = 23365164480. Its totient is φ = 5816448000.

The previous prime is 12481311811. The next prime is 12481311841. The reversal of 12481311812 is 21811318421.

It is not an unprimeable number, because it can be changed into a prime (12481311811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6929312 + ... + 6931112.

It is an arithmetic number, because the mean of its divisors is an integer number (486774260).

Almost surely, 2^12481311812 is an apocalyptic number.

It is an amenable number.

12481311812 is a deficient number, since it is larger than the sum of its proper divisors (10883852668).

12481311812 is a wasteful number, since it uses less digits than its factorization.

12481311812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3250 counting only the distinct ones).

The product of its digits is 3072, while the sum is 32.

The spelling of 12481311812 in words is "twelve billion, four hundred eighty-one million, three hundred eleven thousand, eight hundred twelve".