3123211379 has 2 divisors, whose sum is σ = 3123211380. Its totient is φ = 3123211378.

The previous prime is 3123211373. The next prime is 3123211381. The reversal of 3123211379 is 9731123213.

3123211379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3123211379 is a prime.

It is a Sophie Germain prime.

Together with 3123211381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3123211373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561605689 + 1561605690.

It is an arithmetic number, because the mean of its divisors is an integer number (1561605690).

Almost surely, 2^3123211379 is an apocalyptic number.

3123211379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123211379 is an equidigital number, since it uses as much as digits as its factorization.

3123211379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 32.

The square root of 3123211379 is about 55885.6992351353. The cubic root of 3123211379 is about 1461.7298846983.

The spelling of 3123211379 in words is "three billion, one hundred twenty-three million, two hundred eleven thousand, three hundred seventy-nine".