2112018977 has 2 divisors, whose sum is σ = 2112018978. Its totient is φ = 2112018976.

The previous prime is 2112018973. The next prime is 2112019001. The reversal of 2112018977 is 7798102112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1800814096 + 311204881 = 42436^2 + 17641^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112018977 - 2² = 2112018973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112018977.

It is not a weakly prime, because it can be changed into another prime (2112018971) 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, 1056009488 + 1056009489.

It is an arithmetic number, because the mean of its divisors is an integer number (1056009489).

Almost surely, 2^2112018977 is an apocalyptic number.

It is an amenable number.

2112018977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112018977 is an equidigital number, since it uses as much as digits as its factorization.

2112018977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 38.

The square root of 2112018977 is about 45956.7076388203. The cubic root of 2112018977 is about 1283.0175747506.

The spelling of 2112018977 in words is "two billion, one hundred twelve million, eighteen thousand, nine hundred seventy-seven".