21142114134 has 8 divisors (see below), whose sum is σ = 42284228280. Its totient is φ = 7047371376.

The previous prime is 21142114087. The next prime is 21142114153. The reversal of 21142114134 is 43141124112.

It is a happy number.

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

21142114134 is an admirable number.

It is a Curzon number.

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, 1761842839 + ... + 1761842850.

It is an arithmetic number, because the mean of its divisors is an integer number (5285528535).

Almost surely, 2^21142114134 is an apocalyptic number.

21142114134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21142114134 is a wasteful number, since it uses less digits than its factorization.

21142114134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523685694.

The product of its digits is 768, while the sum is 24.

Adding to 21142114134 its reverse (43141124112), we get a palindrome (64283238246).

The spelling of 21142114134 in words is "twenty-one billion, one hundred forty-two million, one hundred fourteen thousand, one hundred thirty-four".