12019805134 has 8 divisors (see below), whose sum is σ = 18031263120. Its totient is φ = 6009384096.

The previous prime is 12019805087. The next prime is 12019805143. The reversal of 12019805134 is 43150891021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12019805134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229579 + ... + 277030.

It is an arithmetic number, because the mean of its divisors is an integer number (2253907890).

Almost surely, 2^12019805134 is an apocalyptic number.

12019805134 is a deficient number, since it is larger than the sum of its proper divisors (6011457986).

12019805134 is a wasteful number, since it uses less digits than its factorization.

12019805134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518474.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 12019805134 in words is "twelve billion, nineteen million, eight hundred five thousand, one hundred thirty-four".