20113222330331 has 4 divisors (see below), whose sum is σ = 21660393278832. Its totient is φ = 18566051381832.

The previous prime is 20113222330309. The next prime is 20113222330337. The reversal of 20113222330331 is 13303322231102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20113222330331 - 2¹⁰ = 20113222329307 is a prime.

It is a super-2 number, since 2×20113222330331² (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 20113222330331.

It is not an unprimeable number, because it can be changed into a prime (20113222330337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773585474231 + ... + 773585474256.

It is an arithmetic number, because the mean of its divisors is an integer number (5415098319708).

Almost surely, 2^{20113222330331} is an apocalyptic number.

20113222330331 is a deficient number, since it is larger than the sum of its proper divisors (1547170948501).

20113222330331 is a wasteful number, since it uses less digits than its factorization.

20113222330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547170948500.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20113222330331 its reverse (13303322231102), we get a palindrome (33416544561433).

The spelling of 20113222330331 in words is "twenty trillion, one hundred thirteen billion, two hundred twenty-two million, three hundred thirty thousand, three hundred thirty-one".