20213131233211 has 8 divisors (see below), whose sum is σ = 23637947489024. Its totient is φ = 16922621497320.

The previous prime is 20213131233193. The next prime is 20213131233247. The reversal of 20213131233211 is 11233213131202.

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

It is not a de Polignac number, because 20213131233211 - 2¹⁷ = 20213131102139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213131233511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33576629655 + ... + 33576630256.

It is an arithmetic number, because the mean of its divisors is an integer number (2954743436128).

Almost surely, 2^{20213131233211} is an apocalyptic number.

20213131233211 is a deficient number, since it is larger than the sum of its proper divisors (3424816255813).

20213131233211 is an equidigital number, since it uses as much as digits as its factorization.

20213131233211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67153259961.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20213131233211 its reverse (11233213131202), we get a palindrome (31446344364413).

The spelling of 20213131233211 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred eleven".