12127880134 has 4 divisors (see below), whose sum is σ = 18191820204. Its totient is φ = 6063940066.

The previous prime is 12127880119. The next prime is 12127880147. The reversal of 12127880134 is 43108872121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12127880093 and 12127880102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3031970032 + ... + 3031970035.

It is an arithmetic number, because the mean of its divisors is an integer number (4547955051).

Almost surely, 2^12127880134 is an apocalyptic number.

12127880134 is a deficient number, since it is larger than the sum of its proper divisors (6063940070).

12127880134 is an equidigital number, since it uses as much as digits as its factorization.

12127880134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6063940069.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 12127880134 in words is "twelve billion, one hundred twenty-seven million, eight hundred eighty thousand, one hundred thirty-four".