2131110230321 has 8 divisors (see below), whose sum is σ = 2256482456424. Its totient is φ = 2005739426560.

The previous prime is 2131110230303. The next prime is 2131110230323. The reversal of 2131110230321 is 1230320111312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 228545188096 + 1902565042225 = 478064^2 + 1379335^2 .

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 2131110230321 - 2⁶ = 2131110230257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2131110230293 and 2131110230302.

It is not an unprimeable number, because it can be changed into a prime (2131110230323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5293091 + ... + 5681463.

It is an arithmetic number, because the mean of its divisors is an integer number (282060307053).

Almost surely, 2^{2131110230321} is an apocalyptic number.

It is an amenable number.

2131110230321 is a deficient number, since it is larger than the sum of its proper divisors (125372226103).

2131110230321 is a wasteful number, since it uses less digits than its factorization.

2131110230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711171.

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

Adding to 2131110230321 its reverse (1230320111312), we get a palindrome (3361430341633).

The spelling of 2131110230321 in words is "two trillion, one hundred thirty-one billion, one hundred ten million, two hundred thirty thousand, three hundred twenty-one".