3121232287 has 2 divisors, whose sum is σ = 3121232288. Its totient is φ = 3121232286.

The previous prime is 3121232221. The next prime is 3121232321. The reversal of 3121232287 is 7822321213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3121232287 - 2⁷ = 3121232159 is a prime.

It is a super-2 number, since 2×3121232287² = 19484181978822500738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121232887) 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, 1560616143 + 1560616144.

It is an arithmetic number, because the mean of its divisors is an integer number (1560616144).

Almost surely, 2^3121232287 is an apocalyptic number.

3121232287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121232287 is an equidigital number, since it uses as much as digits as its factorization.

3121232287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 3121232287 is about 55867.9898242276. The cubic root of 3121232287 is about 1461.4210669640.

The spelling of 3121232287 in words is "three billion, one hundred twenty-one million, two hundred thirty-two thousand, two hundred eighty-seven".