20344342330331 has 4 divisors (see below), whose sum is σ = 20469154246632. Its totient is φ = 20219530414032.

The previous prime is 20344342330313. The next prime is 20344342330343. The reversal of 20344342330331 is 13303324344302.

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 20344342330331 - 2⁶ = 20344342330267 is a prime.

It is a super-2 number, since 2×20344342330331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20344342330291 and 20344342330300.

It is not an unprimeable number, because it can be changed into a prime (20344342330231) 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, 62405957906 + ... + 62405958231.

It is an arithmetic number, because the mean of its divisors is an integer number (5117288561658).

Almost surely, 2^{20344342330331} is an apocalyptic number.

20344342330331 is a deficient number, since it is larger than the sum of its proper divisors (124811916301).

20344342330331 is a wasteful number, since it uses less digits than its factorization.

20344342330331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124811916300.

The product of its (nonzero) digits is 186624, while the sum is 35.

Adding to 20344342330331 its reverse (13303324344302), we get a palindrome (33647666674633).

The spelling of 20344342330331 in words is "twenty trillion, three hundred forty-four billion, three hundred forty-two million, three hundred thirty thousand, three hundred thirty-one".