21002012331302 has 8 divisors (see below), whose sum is σ = 31574131406856. Its totient is φ = 10477301862352.

The previous prime is 21002012331271. The next prime is 21002012331317. The reversal of 21002012331302 is 20313321020012.

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

It is a super-2 number, since 2×21002012331302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11852150543 + ... + 11852152314.

It is an arithmetic number, because the mean of its divisors is an integer number (3946766425857).

Almost surely, 2^{21002012331302} is an apocalyptic number.

21002012331302 is a deficient number, since it is larger than the sum of its proper divisors (10572119075554).

21002012331302 is a wasteful number, since it uses less digits than its factorization.

21002012331302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23704303302.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21002012331302 its reverse (20313321020012), we get a palindrome (41315333351314).

The spelling of 21002012331302 in words is "twenty-one trillion, two billion, twelve million, three hundred thirty-one thousand, three hundred two".