21404301120135 has 24 divisors (see below), whose sum is σ = 37174547670624. Its totient is φ = 11392932168000.

The previous prime is 21404301120133. The next prime is 21404301120151. The reversal of 21404301120135 is 53102110340412.

21404301120135 is a `hidden beast` number, since 2 + 1 + 404 + 3 + 0 + 1 + 120 + 135 = 666.

It is not a de Polignac number, because 21404301120135 - 2¹ = 21404301120133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21404301120099 and 21404301120108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21404301120133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472791616 + ... + 472836885.

It is an arithmetic number, because the mean of its divisors is an integer number (1548939486276).

Almost surely, 2^{21404301120135} is an apocalyptic number.

21404301120135 is a deficient number, since it is larger than the sum of its proper divisors (15770246550489).

21404301120135 is a wasteful number, since it uses less digits than its factorization.

21404301120135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945629015 (or 945629012 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 21404301120135 its reverse (53102110340412), we get a palindrome (74506411460547).

The spelling of 21404301120135 in words is "twenty-one trillion, four hundred four billion, three hundred one million, one hundred twenty thousand, one hundred thirty-five".