3120210997 has 2 divisors, whose sum is σ = 3120210998. Its totient is φ = 3120210996.

The previous prime is 3120210983. The next prime is 3120211013. The reversal of 3120210997 is 7990120213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2967416676 + 152794321 = 54474^2 + 12361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120210997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120210917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560105498 + 1560105499.

It is an arithmetic number, because the mean of its divisors is an integer number (1560105499).

Almost surely, 2^3120210997 is an apocalyptic number.

It is an amenable number.

3120210997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120210997 is an equidigital number, since it uses as much as digits as its factorization.

3120210997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 3120210997 is about 55858.8488692705. The cubic root of 3120210997 is about 1461.2616536935.

The spelling of 3120210997 in words is "three billion, one hundred twenty million, two hundred ten thousand, nine hundred ninety-seven".