21304401040101 has 16 divisors (see below), whose sum is σ = 28529443740096. Its totient is φ = 14141153287296.

The previous prime is 21304401040051. The next prime is 21304401040193. The reversal of 21304401040101 is 10104010440312.

It is not a de Polignac number, because 21304401040101 - 2⁹ = 21304401039589 is a prime.

It is a super-2 number, since 2×21304401040101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21304401040201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11236566 + ... + 12994968.

It is an arithmetic number, because the mean of its divisors is an integer number (1783090233756).

Almost surely, 2^{21304401040101} is an apocalyptic number.

It is an amenable number.

21304401040101 is a deficient number, since it is larger than the sum of its proper divisors (7225042699995).

21304401040101 is a wasteful number, since it uses less digits than its factorization.

21304401040101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775972.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21304401040101 its reverse (10104010440312), we get a palindrome (31408411480413).

The spelling of 21304401040101 in words is "twenty-one trillion, three hundred four billion, four hundred one million, forty thousand, one hundred one".