2131032101321 has 2 divisors, whose sum is σ = 2131032101322. Its totient is φ = 2131032101320.

The previous prime is 2131032101309. The next prime is 2131032101357. The reversal of 2131032101321 is 1231012301312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1476856867600 + 654175233721 = 1215260^2 + 808811^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131032101321 - 2²² = 2131027907017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131032101293 and 2131032101302.

It is not a weakly prime, because it can be changed into another prime (2131032101221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065516050660 + 1065516050661.

It is an arithmetic number, because the mean of its divisors is an integer number (1065516050661).

Almost surely, 2^{2131032101321} is an apocalyptic number.

It is an amenable number.

2131032101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131032101321 is an equidigital number, since it uses as much as digits as its factorization.

2131032101321 is an evil number, because the sum of its binary digits is even.

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

Adding to 2131032101321 its reverse (1231012301312), we get a palindrome (3362044402633).

The spelling of 2131032101321 in words is "two trillion, one hundred thirty-one billion, thirty-two million, one hundred one thousand, three hundred twenty-one".