2131021223113 has 8 divisors (see below), whose sum is σ = 2183954481576. Its totient is φ = 2078133542400.

The previous prime is 2131021223087. The next prime is 2131021223129. The reversal of 2131021223113 is 3113221201312.

It can be written as a sum of positive squares in 4 ways, for example, as 404811517504 + 1726209705609 = 636248^2 + 1313853^2 .

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 2131021223113 - 2²⁵ = 2130987668681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131021223173) 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, 11299756 + ... + 11486797.

It is an arithmetic number, because the mean of its divisors is an integer number (272994310197).

Almost surely, 2^{2131021223113} is an apocalyptic number.

It is an amenable number.

2131021223113 is a deficient number, since it is larger than the sum of its proper divisors (52933258463).

2131021223113 is a wasteful number, since it uses less digits than its factorization.

2131021223113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22788875.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2131021223113 its reverse (3113221201312), we get a palindrome (5244242424425).

The spelling of 2131021223113 in words is "two trillion, one hundred thirty-one billion, twenty-one million, two hundred twenty-three thousand, one hundred thirteen".