21100022101323 has 64 divisors (see below), whose sum is σ = 36038851430400. Its totient is φ = 12066578100000.

The previous prime is 21100022101303. The next prime is 21100022101423. The reversal of 21100022101323 is 32310122000112.

21100022101323 is a `hidden beast` number, since 21 + 100 + 0 + 221 + 0 + 1 + 323 = 666.

It is not a de Polignac number, because 21100022101323 - 2⁶ = 21100022101259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21100022101296 and 21100022101305.

It is not an unprimeable number, because it can be changed into a prime (21100022101303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6032113 + ... + 8864898.

It is an arithmetic number, because the mean of its divisors is an integer number (563107053600).

Almost surely, 2^{21100022101323} is an apocalyptic number.

21100022101323 is a deficient number, since it is larger than the sum of its proper divisors (14938829329077).

21100022101323 is a wasteful number, since it uses less digits than its factorization.

21100022101323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14897301 (or 14897295 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21100022101323 its reverse (32310122000112), we get a palindrome (53410144101435).

The spelling of 21100022101323 in words is "twenty-one trillion, one hundred billion, twenty-two million, one hundred one thousand, three hundred twenty-three".