21010203020302 has 16 divisors (see below), whose sum is σ = 31993997443200. Its totient is φ = 10345618727928.

The previous prime is 21010203020263. The next prime is 21010203020357. The reversal of 21010203020302 is 20302030201012.

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 7 ways as a sum of consecutive naturals, for example, 19863052 + ... + 20894047.

It is an arithmetic number, because the mean of its divisors is an integer number (1999624840200).

Almost surely, 2^{21010203020302} is an apocalyptic number.

21010203020302 is a deficient number, since it is larger than the sum of its proper divisors (10983794422898).

21010203020302 is a wasteful number, since it uses less digits than its factorization.

21010203020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40761015.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21010203020302 its reverse (20302030201012), we get a palindrome (41312233221314).

The spelling of 21010203020302 in words is "twenty-one trillion, ten billion, two hundred three million, twenty thousand, three hundred two".