200243122430977 has 2 divisors, whose sum is σ = 200243122430978. Its totient is φ = 200243122430976.

The previous prime is 200243122430969. The next prime is 200243122431071. The reversal of 200243122430977 is 779034221342002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199919493425521 + 323629005456 = 14139289^2 + 568884^2 .

It is a cyclic number.

It is not a de Polignac number, because 200243122430977 - 2³ = 200243122430969 is a prime.

It is a super-2 number, since 2×200243122430977² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200243122430077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100121561215488 + 100121561215489.

It is an arithmetic number, because the mean of its divisors is an integer number (100121561215489).

Almost surely, 2^{200243122430977} is an apocalyptic number.

It is an amenable number.

200243122430977 is a deficient number, since it is larger than the sum of its proper divisors (1).

200243122430977 is an equidigital number, since it uses as much as digits as its factorization.

200243122430977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 46.

Adding to 200243122430977 its reverse (779034221342002), we get a palindrome (979277343772979).

The spelling of 200243122430977 in words is "two hundred trillion, two hundred forty-three billion, one hundred twenty-two million, four hundred thirty thousand, nine hundred seventy-seven".