21043750230 has 24 divisors (see below), whose sum is σ = 54713750832. Its totient is φ = 5611666704.

The previous prime is 21043750201. The next prime is 21043750289. The reversal of 21043750230 is 3205734012.

It is a junction number, because it is equal to n+sod(n) for n = 21043750194 and 21043750203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116909634 + ... + 116909813.

It is an arithmetic number, because the mean of its divisors is an integer number (2279739618).

Almost surely, 2^21043750230 is an apocalyptic number.

21043750230 is an abundant number, since it is smaller than the sum of its proper divisors (33670000602).

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

21043750230 is a wasteful number, since it uses less digits than its factorization.

21043750230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233819460 (or 233819457 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The spelling of 21043750230 in words is "twenty-one billion, forty-three million, seven hundred fifty thousand, two hundred thirty".