21201352350230 has 32 divisors (see below), whose sum is σ = 41344101981504. Its totient is φ = 7781316230016.

The previous prime is 21201352350221. The next prime is 21201352350271. The reversal of 21201352350230 is 3205325310212.

It is a junction number, because it is equal to n+sod(n) for n = 21201352350193 and 21201352350202.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 488263697 + ... + 488307116.

It is an arithmetic number, because the mean of its divisors is an integer number (1292003186922).

Almost surely, 2^{21201352350230} is an apocalyptic number.

21201352350230 is a deficient number, since it is larger than the sum of its proper divisors (20142749631274).

21201352350230 is a wasteful number, since it uses less digits than its factorization.

21201352350230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976571000.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 21201352350230 its reverse (3205325310212), we get a palindrome (24406677660442).

The spelling of 21201352350230 in words is "twenty-one trillion, two hundred one billion, three hundred fifty-two million, three hundred fifty thousand, two hundred thirty".