21403320214104 has 96 divisors (see below), whose sum is σ = 60132823732800. Its totient is φ = 6872322562560.

The previous prime is 21403320214079. The next prime is 21403320214117. The reversal of 21403320214104 is 40141202330412.

21403320214104 is a `hidden beast` number, since 2 + 1 + 40 + 3 + 3 + 202 + 1 + 410 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45655699 + ... + 46122114.

It is an arithmetic number, because the mean of its divisors is an integer number (626383580550).

Almost surely, 2^{21403320214104} is an apocalyptic number.

21403320214104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21403320214104 is an abundant number, since it is smaller than the sum of its proper divisors (38729503518696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21403320214104 is a wasteful number, since it uses less digits than its factorization.

21403320214104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91777945 (or 91777938 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21403320214104 its reverse (40141202330412), we get a palindrome (61544522544516).

The spelling of 21403320214104 in words is "twenty-one trillion, four hundred three billion, three hundred twenty million, two hundred fourteen thousand, one hundred four".