21010312310230 has 32 divisors (see below), whose sum is σ = 37865371864320. Its totient is φ = 8393723691360.

The previous prime is 21010312310219. The next prime is 21010312310237. The reversal of 21010312310230 is 3201321301012.

It is a junction number, because it is equal to n+sod(n) for n = 21010312310198 and 21010312310207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010312310237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246178665 + ... + 246263995.

It is an arithmetic number, because the mean of its divisors is an integer number (1183292870760).

Almost surely, 2^{21010312310230} is an apocalyptic number.

21010312310230 is a deficient number, since it is larger than the sum of its proper divisors (16855059554090).

21010312310230 is a wasteful number, since it uses less digits than its factorization.

21010312310230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115524.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21010312310230 its reverse (3201321301012), we get a palindrome (24211633611242).

The spelling of 21010312310230 in words is "twenty-one trillion, ten billion, three hundred twelve million, three hundred ten thousand, two hundred thirty".