2131110322321 has 2 divisors, whose sum is σ = 2131110322322. Its totient is φ = 2131110322320.

The previous prime is 2131110322307. The next prime is 2131110322387. The reversal of 2131110322321 is 1232230111312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2068522791696 + 62587530625 = 1438236^2 + 250175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131110322321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131110322292 and 2131110322301.

It is not a weakly prime, because it can be changed into another prime (2131110322391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065555161160 + 1065555161161.

It is an arithmetic number, because the mean of its divisors is an integer number (1065555161161).

Almost surely, 2^{2131110322321} is an apocalyptic number.

It is an amenable number.

2131110322321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131110322321 is an equidigital number, since it uses as much as digits as its factorization.

2131110322321 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2131110322321 its reverse (1232230111312), we get a palindrome (3363340433633).

The spelling of 2131110322321 in words is "two trillion, one hundred thirty-one billion, one hundred ten million, three hundred twenty-two thousand, three hundred twenty-one".