21000223030302 has 24 divisors (see below), whose sum is σ = 45500593010184. Its totient is φ = 7000057454544.

The previous prime is 21000223030301. The next prime is 21000223030333. The reversal of 21000223030302 is 20303032200012.

It is a happy number.

21000223030302 is a `hidden beast` number, since 2 + 100 + 0 + 2 + 230 + 30 + 302 = 666.

It is a super-2 number, since 2×21000223030302² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000223030301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7937368 + ... + 10247060.

It is an arithmetic number, because the mean of its divisors is an integer number (1895858042091).

Almost surely, 2^{21000223030302} is an apocalyptic number.

21000223030302 is an abundant number, since it is smaller than the sum of its proper divisors (24500369979882).

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

21000223030302 is a wasteful number, since it uses less digits than its factorization.

21000223030302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814824 (or 2814821 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 21000223030302 its reverse (20303032200012), we get a palindrome (41303255230314).

The spelling of 21000223030302 in words is "twenty-one trillion, two hundred twenty-three million, thirty thousand, three hundred two".