20131122334243 has 8 divisors (see below), whose sum is σ = 20329812938160. Its totient is φ = 19932686301600.

The previous prime is 20131122334241. The next prime is 20131122334249. The reversal of 20131122334243 is 34243322113102.

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 20131122334243 - 2¹ = 20131122334241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131122334241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63483880 + ... + 63800197.

It is an arithmetic number, because the mean of its divisors is an integer number (2541226617270).

Almost surely, 2^{20131122334243} is an apocalyptic number.

20131122334243 is a deficient number, since it is larger than the sum of its proper divisors (198690603917).

20131122334243 is a wasteful number, since it uses less digits than its factorization.

20131122334243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127285637.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 20131122334243 its reverse (34243322113102), we get a palindrome (54374444447345).

The spelling of 20131122334243 in words is "twenty trillion, one hundred thirty-one billion, one hundred twenty-two million, three hundred thirty-four thousand, two hundred forty-three".