3121938119 has 2 divisors, whose sum is σ = 3121938120. Its totient is φ = 3121938118.

The previous prime is 3121938109. The next prime is 3121938121. The reversal of 3121938119 is 9118391213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121938119 is a prime.

It is a super-2 number, since 2×3121938119² = 19492995237730516322, which contains 22 as substring.

Together with 3121938121, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121938109) 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, 1560969059 + 1560969060.

It is an arithmetic number, because the mean of its divisors is an integer number (1560969060).

Almost surely, 2^3121938119 is an apocalyptic number.

3121938119 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121938119 is an equidigital number, since it uses as much as digits as its factorization.

3121938119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 38.

The square root of 3121938119 is about 55874.3064296999. The cubic root of 3121938119 is about 1461.5312200396.

The spelling of 3121938119 in words is "three billion, one hundred twenty-one million, nine hundred thirty-eight thousand, one hundred nineteen".