21013233331104 has 96 divisors (see below), whose sum is σ = 70044111123840. Its totient is φ = 6003780950016.

The previous prime is 21013233331099. The next prime is 21013233331121. The reversal of 21013233331104 is 40113333231012.

21013233331104 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 323 + 3 + 331 + 1 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737199089 + ... + 1737211184.

It is an arithmetic number, because the mean of its divisors is an integer number (729626157540).

Almost surely, 2^{21013233331104} is an apocalyptic number.

21013233331104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21013233331104 is an abundant number, since it is smaller than the sum of its proper divisors (49030877792736).

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

21013233331104 is a wasteful number, since it uses less digits than its factorization.

21013233331104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474410299 (or 3474410285 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21013233331104 its reverse (40113333231012), we get a palindrome (61126566562116).

The spelling of 21013233331104 in words is "twenty-one trillion, thirteen billion, two hundred thirty-three million, three hundred thirty-one thousand, one hundred four".