200100020977 has 2 divisors, whose sum is σ = 200100020978. Its totient is φ = 200100020976.

The previous prime is 200100020971. The next prime is 200100021013. The reversal of 200100020977 is 779020001002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141082120881 + 59017900096 = 375609^2 + 242936^2 .

It is a cyclic number.

It is not a de Polignac number, because 200100020977 - 2²⁷ = 199965803249 is a prime.

It is not a weakly prime, because it can be changed into another prime (200100020971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100050010488 + 100050010489.

It is an arithmetic number, because the mean of its divisors is an integer number (100050010489).

Almost surely, 2^200100020977 is an apocalyptic number.

It is an amenable number.

200100020977 is a deficient number, since it is larger than the sum of its proper divisors (1).

200100020977 is an equidigital number, since it uses as much as digits as its factorization.

200100020977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 200100020977 its reverse (779020001002), we get a palindrome (979120021979).

The spelling of 200100020977 in words is "two hundred billion, one hundred million, twenty thousand, nine hundred seventy-seven".