1012319977 has 2 divisors, whose sum is σ = 1012319978. Its totient is φ = 1012319976.

The previous prime is 1012319881. The next prime is 1012320011. The reversal of 1012319977 is 7799132101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789385216 + 222934761 = 28096^2 + 14931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012319977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012319177) 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, 506159988 + 506159989.

It is an arithmetic number, because the mean of its divisors is an integer number (506159989).

Almost surely, 2^1012319977 is an apocalyptic number.

It is an amenable number.

1012319977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012319977 is an equidigital number, since it uses as much as digits as its factorization.

1012319977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 1012319977 is about 31816.9762391086. The cubic root of 1012319977 is about 1004.0899088412.

The spelling of 1012319977 in words is "one billion, twelve million, three hundred nineteen thousand, nine hundred seventy-seven".