12138284132 has 48 divisors (see below), whose sum is σ = 23891992320. Its totient is φ = 5353907328.

The previous prime is 12138284113. The next prime is 12138284141. The reversal of 12138284132 is 23148283121.

It is a junction number, because it is equal to n+sod(n) for n = 12138284092 and 12138284101.

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, 1554494 + ... + 1562282.

It is an arithmetic number, because the mean of its divisors is an integer number (497749840).

Almost surely, 2^12138284132 is an apocalyptic number.

It is an amenable number.

12138284132 is a deficient number, since it is larger than the sum of its proper divisors (11753708188).

12138284132 is a wasteful number, since it uses less digits than its factorization.

12138284132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132 (or 9130 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The spelling of 12138284132 in words is "twelve billion, one hundred thirty-eight million, two hundred eighty-four thousand, one hundred thirty-two".