3121330099 has 2 divisors, whose sum is σ = 3121330100. Its totient is φ = 3121330098.

The previous prime is 3121330097. The next prime is 3121330109. The reversal of 3121330099 is 9900331213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121330099 - 2¹ = 3121330097 is a prime.

Together with 3121330097, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3121330099.

It is not a weakly prime, because it can be changed into another prime (3121330097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560665049 + 1560665050.

It is an arithmetic number, because the mean of its divisors is an integer number (1560665050).

Almost surely, 2^3121330099 is an apocalyptic number.

3121330099 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121330099 is an equidigital number, since it uses as much as digits as its factorization.

3121330099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 3121330099 is about 55868.8652023647. The cubic root of 3121330099 is about 1461.4363326252.

The spelling of 3121330099 in words is "three billion, one hundred twenty-one million, three hundred thirty thousand, ninety-nine".