331001339989 has 2 divisors, whose sum is σ = 331001339990. Its totient is φ = 331001339988.

The previous prime is 331001339951. The next prime is 331001340001. The reversal of 331001339989 is 989933100133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167960628900 + 163040711089 = 409830^2 + 403783^2 .

It is a cyclic number.

It is not a de Polignac number, because 331001339989 - 2¹³ = 331001331797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331001339089) 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, 165500669994 + 165500669995.

It is an arithmetic number, because the mean of its divisors is an integer number (165500669995).

Almost surely, 2^331001339989 is an apocalyptic number.

It is an amenable number.

331001339989 is a deficient number, since it is larger than the sum of its proper divisors (1).

331001339989 is an equidigital number, since it uses as much as digits as its factorization.

331001339989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 49.

The spelling of 331001339989 in words is "three hundred thirty-one billion, one million, three hundred thirty-nine thousand, nine hundred eighty-nine".