3120999977 has 2 divisors, whose sum is σ = 3120999978. Its totient is φ = 3120999976.

The previous prime is 3120999967. The next prime is 3121000031. The reversal of 3120999977 is 7799990213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1823631616 + 1297368361 = 42704^2 + 36019^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120999977 - 2³⁰ = 2047258153 is a prime.

It is not a weakly prime, because it can be changed into another prime (3120999967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560499988 + 1560499989.

It is an arithmetic number, because the mean of its divisors is an integer number (1560499989).

Almost surely, 2^3120999977 is an apocalyptic number.

It is an amenable number.

3120999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120999977 is an equidigital number, since it uses as much as digits as its factorization.

3120999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1928934, while the sum is 56.

The square root of 3120999977 is about 55865.9106880036. The cubic root of 3120999977 is about 1461.3848087257.

The spelling of 3120999977 in words is "three billion, one hundred twenty million, nine hundred ninety-nine thousand, nine hundred seventy-seven".