21113100403235 has 8 divisors (see below), whose sum is σ = 25384349509056. Its totient is φ = 16858060972480.

The previous prime is 21113100403229. The next prime is 21113100403261. The reversal of 21113100403235 is 53230400131112.

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

It is a de Polignac number, because none of the positive numbers 2^k-21113100403235 is a prime.

It is a Duffinian 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, 4052415899 + ... + 4052421108.

It is an arithmetic number, because the mean of its divisors is an integer number (3173043688632).

Almost surely, 2^{21113100403235} is an apocalyptic number.

21113100403235 is a deficient number, since it is larger than the sum of its proper divisors (4271249105821).

21113100403235 is an equidigital number, since it uses as much as digits as its factorization.

21113100403235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104837533.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 21113100403235 its reverse (53230400131112), we get a palindrome (74343500534347).

The spelling of 21113100403235 in words is "twenty-one trillion, one hundred thirteen billion, one hundred million, four hundred three thousand, two hundred thirty-five".