2132551321 has 2 divisors, whose sum is σ = 2132551322. Its totient is φ = 2132551320.

The previous prime is 2132551261. The next prime is 2132551357. The reversal of 2132551321 is 1231552312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108187225 + 24364096 = 45915^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132551321 - 2⁷ = 2132551193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2132551391) 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 as a sum of consecutive naturals, namely, 1066275660 + 1066275661.

It is an arithmetic number, because the mean of its divisors is an integer number (1066275661).

Almost surely, 2^2132551321 is an apocalyptic number.

It is an amenable number.

2132551321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132551321 is an equidigital number, since it uses as much as digits as its factorization.

2132551321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 2132551321 is about 46179.5552273947. Note that the first 3 decimals coincide. The cubic root of 2132551321 is about 1287.1618634572.

Subtracting from 2132551321 its reverse (1231552312), we obtain a palindrome (900999009).

The spelling of 2132551321 in words is "two billion, one hundred thirty-two million, five hundred fifty-one thousand, three hundred twenty-one".