20021302331203 has 16 divisors (see below), whose sum is σ = 20591732761600. Its totient is φ = 19455792693120.

The previous prime is 20021302331189. The next prime is 20021302331221. The reversal of 20021302331203 is 30213320312002.

It is a cyclic number.

It is not a de Polignac number, because 20021302331203 - 2²⁵ = 20021268776771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021302331803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9837418 + ... + 11696896.

It is an arithmetic number, because the mean of its divisors is an integer number (1286983297600).

Almost surely, 2^{20021302331203} is an apocalyptic number.

20021302331203 is a deficient number, since it is larger than the sum of its proper divisors (570430430397).

20021302331203 is a wasteful number, since it uses less digits than its factorization.

20021302331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860802.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20021302331203 its reverse (30213320312002), we get a palindrome (50234622643205).

The spelling of 20021302331203 in words is "twenty trillion, twenty-one billion, three hundred two million, three hundred thirty-one thousand, two hundred three".