21234342201334 has 16 divisors (see below), whose sum is σ = 32530978787328. Its totient is φ = 10390707240552.

The previous prime is 21234342201223. The next prime is 21234342201341. The reversal of 21234342201334 is 43310224343212.

It is a self number, because there is not a number n which added to its sum of digits gives 21234342201334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4423044 + ... + 7876039.

It is an arithmetic number, because the mean of its divisors is an integer number (2033186174208).

Almost surely, 2^{21234342201334} is an apocalyptic number.

21234342201334 is a deficient number, since it is larger than the sum of its proper divisors (11296636585994).

21234342201334 is a wasteful number, since it uses less digits than its factorization.

21234342201334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317499.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 21234342201334 its reverse (43310224343212), we get a palindrome (64544566544546).

The spelling of 21234342201334 in words is "twenty-one trillion, two hundred thirty-four billion, three hundred forty-two million, two hundred one thousand, three hundred thirty-four".