20201021203002 has 32 divisors (see below), whose sum is σ = 41263568474112. Its totient is φ = 6590099307504.

The previous prime is 20201021202941. The next prime is 20201021203003. The reversal of 20201021203002 is 20030212010202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20201021203003) 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, 4492803 + ... + 7783785.

It is an arithmetic number, because the mean of its divisors is an integer number (1289486514816).

Almost surely, 2^{20201021203002} is an apocalyptic number.

20201021203002 is an abundant number, since it is smaller than the sum of its proper divisors (21062547271110).

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

20201021203002 is a wasteful number, since it uses less digits than its factorization.

20201021203002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312802.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20201021203002 its reverse (20030212010202), we get a palindrome (40231233213204).

The spelling of 20201021203002 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred three thousand, two".