21301343432134 has 16 divisors (see below), whose sum is σ = 33012466381440. Its totient is φ = 10297807577280.

The previous prime is 21301343432029. The next prime is 21301343432179. The reversal of 21301343432134 is 43123434310312.

It is a super-4 number, since 4×21301343432134⁴ (a number of 54 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21301343432134.

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 in 7 ways as a sum of consecutive naturals, for example, 154832079 + ... + 154969594.

It is an arithmetic number, because the mean of its divisors is an integer number (2063279148840).

Almost surely, 2^{21301343432134} is an apocalyptic number.

21301343432134 is a deficient number, since it is larger than the sum of its proper divisors (11711122949306).

21301343432134 is a wasteful number, since it uses less digits than its factorization.

21301343432134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309802815.

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 21301343432134 its reverse (43123434310312), we get a palindrome (64424777742446).

The spelling of 21301343432134 in words is "twenty-one trillion, three hundred one billion, three hundred forty-three million, four hundred thirty-two thousand, one hundred thirty-four".