3123320287 has 2 divisors, whose sum is σ = 3123320288. Its totient is φ = 3123320286.

The previous prime is 3123320279. The next prime is 3123320293. The reversal of 3123320287 is 7820233213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3123320287 - 2³ = 3123320279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123320297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561660143 + 1561660144.

It is an arithmetic number, because the mean of its divisors is an integer number (1561660144).

Almost surely, 2^3123320287 is an apocalyptic number.

3123320287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123320287 is an equidigital number, since it uses as much as digits as its factorization.

3123320287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 3123320287 is about 55886.6736082941. The cubic root of 3123320287 is about 1461.7468749271.

The spelling of 3123320287 in words is "three billion, one hundred twenty-three million, three hundred twenty thousand, two hundred eighty-seven".