20134221202331 has 8 divisors (see below), whose sum is σ = 20411338015104. Its totient is φ = 19857139675200.

The previous prime is 20134221202279. The next prime is 20134221202349. The reversal of 20134221202331 is 13320212243102.

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

It is a cyclic number.

It is not a de Polignac number, because 20134221202331 - 2⁴² = 15736174691227 is a prime.

It is a super-2 number, since 2×20134221202331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20134221202331.

It is not an unprimeable number, because it can be changed into a prime (20134221208331) 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, 7671320 + ... + 9955781.

It is an arithmetic number, because the mean of its divisors is an integer number (2551417251888).

Almost surely, 2^{20134221202331} is an apocalyptic number.

20134221202331 is a deficient number, since it is larger than the sum of its proper divisors (277116812773).

20134221202331 is a wasteful number, since it uses less digits than its factorization.

20134221202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17642821.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20134221202331 its reverse (13320212243102), we get a palindrome (33454433445433).

The spelling of 20134221202331 in words is "twenty trillion, one hundred thirty-four billion, two hundred twenty-one million, two hundred two thousand, three hundred thirty-one".