21107452321300 has 36 divisors (see below), whose sum is σ = 45819882519516. Its totient is φ = 8439900563200.

The previous prime is 21107452321289. The next prime is 21107452321321. The reversal of 21107452321300 is 312325470112.

It can be written as a sum of positive squares in 6 ways, for example, as 170037470736 + 20937414850564 = 412356^2 + 4575742^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38229097 + ... + 38777296.

It is an arithmetic number, because the mean of its divisors is an integer number (1272774514431).

Almost surely, 2^{21107452321300} is an apocalyptic number.

21107452321300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21107452321300 is an abundant number, since it is smaller than the sum of its proper divisors (24712430198216).

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

21107452321300 is a wasteful number, since it uses less digits than its factorization.

21107452321300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77009148 (or 77009141 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 21107452321300 its reverse (312325470112), we get a palindrome (21419777791412).

The spelling of 21107452321300 in words is "twenty-one trillion, one hundred seven billion, four hundred fifty-two million, three hundred twenty-one thousand, three hundred".