20131021144302 has 32 divisors (see below), whose sum is σ = 40306600089504. Its totient is φ = 6702914649600.

The previous prime is 20131021144291. The next prime is 20131021144343. The reversal of 20131021144302 is 20344112013102.

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 15 ways as a sum of consecutive naturals, for example, 186377152 + ... + 186485132.

It is an arithmetic number, because the mean of its divisors is an integer number (1259581252797).

Almost surely, 2^{20131021144302} is an apocalyptic number.

20131021144302 is an abundant number, since it is smaller than the sum of its proper divisors (20175578945202).

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

20131021144302 is a wasteful number, since it uses less digits than its factorization.

20131021144302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142084.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20131021144302 its reverse (20344112013102), we get a palindrome (40475133157404).

The spelling of 20131021144302 in words is "twenty trillion, one hundred thirty-one billion, twenty-one million, one hundred forty-four thousand, three hundred two".