21134120002 has 8 divisors (see below), whose sum is σ = 32147675712. Its totient is φ = 10418228100.

The previous prime is 21134119999. The next prime is 21134120003. The reversal of 21134120002 is 20002143112.

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

It is not an unprimeable number, because it can be changed into a prime (21134120003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74415774 + ... + 74416057.

It is an arithmetic number, because the mean of its divisors is an integer number (4018459464).

Almost surely, 2^21134120002 is an apocalyptic number.

21134120002 is a deficient number, since it is larger than the sum of its proper divisors (11013555710).

21134120002 is a wasteful number, since it uses less digits than its factorization.

21134120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148831904.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21134120002 its reverse (20002143112), we get a palindrome (41136263114).

The spelling of 21134120002 in words is "twenty-one billion, one hundred thirty-four million, one hundred twenty thousand, two".