2132421321361 has 2 divisors, whose sum is σ = 2132421321362. Its totient is φ = 2132421321360.

The previous prime is 2132421321341. The next prime is 2132421321397. The reversal of 2132421321361 is 1631231242312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1661441082961 + 470980238400 = 1288969^2 + 686280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132421321361 - 2⁹ = 2132421320849 is a prime.

It is not a weakly prime, because it can be changed into another prime (2132421321341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066210660680 + 1066210660681.

It is an arithmetic number, because the mean of its divisors is an integer number (1066210660681).

Almost surely, 2^{2132421321361} is an apocalyptic number.

It is an amenable number.

2132421321361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132421321361 is an equidigital number, since it uses as much as digits as its factorization.

2132421321361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

Adding to 2132421321361 its reverse (1631231242312), we get a palindrome (3763652563673).

The spelling of 2132421321361 in words is "two trillion, one hundred thirty-two billion, four hundred twenty-one million, three hundred twenty-one thousand, three hundred sixty-one".