1230299977 has 2 divisors, whose sum is σ = 1230299978. Its totient is φ = 1230299976.

The previous prime is 1230299963. The next prime is 1230300091. The reversal of 1230299977 is 7799920321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012766976 + 217533001 = 31824^2 + 14749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230299977 - 2⁷ = 1230299849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230299977.

It is not a weakly prime, because it can be changed into another prime (1230299947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615149988 + 615149989.

It is an arithmetic number, because the mean of its divisors is an integer number (615149989).

Almost surely, 2^1230299977 is an apocalyptic number.

It is an amenable number.

1230299977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230299977 is an equidigital number, since it uses as much as digits as its factorization.

1230299977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 1230299977 is about 35075.6322394907. The cubic root of 1230299977 is about 1071.5283649787.

The spelling of 1230299977 in words is "one billion, two hundred thirty million, two hundred ninety-nine thousand, nine hundred seventy-seven".