21230200113028 has 12 divisors (see below), whose sum is σ = 38156981284492. Its totient is φ = 10328205460320.

The previous prime is 21230200113013. The next prime is 21230200113029. The reversal of 21230200113028 is 82031100203212.

It can be written as a sum of positive squares in 2 ways, for example, as 20164841718784 + 1065358394244 = 4490528^2 + 1032162^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21230200112993 and 21230200113011.

It is not an unprimeable number, because it can be changed into a prime (21230200113029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71723648883 + ... + 71723649178.

Almost surely, 2^{21230200113028} is an apocalyptic number.

It is an amenable number.

21230200113028 is a deficient number, since it is larger than the sum of its proper divisors (16926781171464).

21230200113028 is a wasteful number, since it uses less digits than its factorization.

21230200113028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143447298102 (or 143447298100 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 21230200113028 in words is "twenty-one trillion, two hundred thirty billion, two hundred million, one hundred thirteen thousand, twenty-eight".