21020231201302 has 8 divisors (see below), whose sum is σ = 31530368294856. Its totient is φ = 10510108436352.

The previous prime is 21020231201293. The next prime is 21020231201317. The reversal of 21020231201302 is 20310213202012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21020231201302.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1563958 + ... + 6669814.

It is an arithmetic number, because the mean of its divisors is an integer number (3941296036857).

Almost surely, 2^{21020231201302} is an apocalyptic number.

21020231201302 is a deficient number, since it is larger than the sum of its proper divisors (10510137093554).

21020231201302 is a wasteful number, since it uses less digits than its factorization.

21020231201302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7164302.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21020231201302 its reverse (20310213202012), we get a palindrome (41330444403314).

The spelling of 21020231201302 in words is "twenty-one trillion, twenty billion, two hundred thirty-one million, two hundred one thousand, three hundred two".