131002330321 has 2 divisors, whose sum is σ = 131002330322. Its totient is φ = 131002330320.

The previous prime is 131002330309. The next prime is 131002330369. The reversal of 131002330321 is 123033200131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126849945600 + 4152384721 = 356160^2 + 64439^2 .

It is a cyclic number.

It is not a de Polignac number, because 131002330321 - 2⁵ = 131002330289 is a prime.

It is a super-2 number, since 2×131002330321² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131002330391) 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, 65501165160 + 65501165161.

It is an arithmetic number, because the mean of its divisors is an integer number (65501165161).

Almost surely, 2^131002330321 is an apocalyptic number.

It is an amenable number.

131002330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002330321 is an equidigital number, since it uses as much as digits as its factorization.

131002330321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131002330321 its reverse (123033200131), we get a palindrome (254035530452).

The spelling of 131002330321 in words is "one hundred thirty-one billion, two million, three hundred thirty thousand, three hundred twenty-one".