20001020102203 has 32 divisors (see below), whose sum is σ = 25177463193600. Its totient is φ = 15492006120096.

The previous prime is 20001020102201. The next prime is 20001020102221. The reversal of 20001020102203 is 30220102010002.

It is a cyclic number.

It is not a de Polignac number, because 20001020102203 - 2¹ = 20001020102201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001020102201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8008251 + ... + 10204612.

It is an arithmetic number, because the mean of its divisors is an integer number (786795724800).

Almost surely, 2^{20001020102203} is an apocalyptic number.

20001020102203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20001020102203 is a deficient number, since it is larger than the sum of its proper divisors (5176443091397).

20001020102203 is a wasteful number, since it uses less digits than its factorization.

20001020102203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18213271.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20001020102203 its reverse (30220102010002), we get a palindrome (50221122112205).

The spelling of 20001020102203 in words is "twenty trillion, one billion, twenty million, one hundred two thousand, two hundred three".