12012402134 has 4 divisors (see below), whose sum is σ = 18018603204. Its totient is φ = 6006201066.

The previous prime is 12012402107. The next prime is 12012402163. The reversal of 12012402134 is 43120421021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43120421021 = 347 ⋅124266343.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003100532 + ... + 3003100535.

It is an arithmetic number, because the mean of its divisors is an integer number (4504650801).

Almost surely, 2^12012402134 is an apocalyptic number.

12012402134 is a deficient number, since it is larger than the sum of its proper divisors (6006201070).

12012402134 is an equidigital number, since it uses as much as digits as its factorization.

12012402134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6006201069.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12012402134 its reverse (43120421021), we get a palindrome (55132823155).

The spelling of 12012402134 in words is "twelve billion, twelve million, four hundred two thousand, one hundred thirty-four".