12134278236 has 24 divisors (see below), whose sum is σ = 28336500864. Its totient is φ = 4041447280.

The previous prime is 12134278201. The next prime is 12134278249. The reversal of 12134278236 is 63287243121.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12134278194 and 12134278203.

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, 398730 + ... + 428081.

It is an arithmetic number, because the mean of its divisors is an integer number (1180687536).

Almost surely, 2^12134278236 is an apocalyptic number.

It is an amenable number.

12134278236 is an abundant number, since it is smaller than the sum of its proper divisors (16202222628).

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

12134278236 is a wasteful number, since it uses less digits than its factorization.

12134278236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828041 (or 828039 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The spelling of 12134278236 in words is "twelve billion, one hundred thirty-four million, two hundred seventy-eight thousand, two hundred thirty-six".