21002023300302 has 32 divisors (see below), whose sum is σ = 50913995880960. Its totient is φ = 6364249484760.

The previous prime is 21002023300267. The next prime is 21002023300303. The reversal of 21002023300302 is 20300332020012.

It is a happy number.

21002023300302 is a `hidden beast` number, since 2 + 10 + 0 + 20 + 2 + 330 + 0 + 302 = 666.

It is a super-2 number, since 2×21002023300302² (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 (21002023300303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17678470198 + ... + 17678471385.

It is an arithmetic number, because the mean of its divisors is an integer number (1591062371280).

Almost surely, 2^{21002023300302} is an apocalyptic number.

21002023300302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21002023300302 is an abundant number, since it is smaller than the sum of its proper divisors (29911972580658).

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

21002023300302 is a wasteful number, since it uses less digits than its factorization.

21002023300302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35356941605 (or 35356941599 counting only the distinct ones).

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

Adding to 21002023300302 its reverse (20300332020012), we get a palindrome (41302355320314).

The spelling of 21002023300302 in words is "twenty-one trillion, two billion, twenty-three million, three hundred thousand, three hundred two".