21113343034135 has 32 divisors (see below), whose sum is σ = 28108708335360. Its totient is φ = 15094385856000.

The previous prime is 21113343034103. The next prime is 21113343034171. The reversal of 21113343034135 is 53143034331112.

It is not a de Polignac number, because 21113343034135 - 2⁵ = 21113343034103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21113343034135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112420060 + ... + 112607710.

It is an arithmetic number, because the mean of its divisors is an integer number (878397135480).

Almost surely, 2^{21113343034135} is an apocalyptic number.

21113343034135 is a deficient number, since it is larger than the sum of its proper divisors (6995365301225).

21113343034135 is a wasteful number, since it uses less digits than its factorization.

21113343034135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222399.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 21113343034135 its reverse (53143034331112), we get a palindrome (74256377365247).

The spelling of 21113343034135 in words is "twenty-one trillion, one hundred thirteen billion, three hundred forty-three million, thirty-four thousand, one hundred thirty-five".