2131101230321 has 16 divisors (see below), whose sum is σ = 2477140733184. Its totient is φ = 1795719746304.

The previous prime is 2131101230311. The next prime is 2131101230327. The reversal of 2131101230321 is 1230321011312.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131101230321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131101230293 and 2131101230302.

It is not an unprimeable number, because it can be changed into a prime (2131101230327) 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 15 ways as a sum of consecutive naturals, for example, 10688660 + ... + 10886213.

It is an arithmetic number, because the mean of its divisors is an integer number (154821295824).

Almost surely, 2^{2131101230321} is an apocalyptic number.

It is an amenable number.

2131101230321 is a deficient number, since it is larger than the sum of its proper divisors (346039502863).

2131101230321 is a wasteful number, since it uses less digits than its factorization.

2131101230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575120.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2131101230321 its reverse (1230321011312), we get a palindrome (3361422241633).

The spelling of 2131101230321 in words is "two trillion, one hundred thirty-one billion, one hundred one million, two hundred thirty thousand, three hundred twenty-one".