102130100077 has 2 divisors, whose sum is σ = 102130100078. Its totient is φ = 102130100076.

The previous prime is 102130100057. The next prime is 102130100087. The reversal of 102130100077 is 770001031201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63702731236 + 38427368841 = 252394^2 + 196029^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102130100077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102130100057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065050038 + 51065050039.

It is an arithmetic number, because the mean of its divisors is an integer number (51065050039).

Almost surely, 2^102130100077 is an apocalyptic number.

It is an amenable number.

102130100077 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130100077 is an equidigital number, since it uses as much as digits as its factorization.

102130100077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

Adding to 102130100077 its reverse (770001031201), we get a palindrome (872131131278).

The spelling of 102130100077 in words is "one hundred two billion, one hundred thirty million, one hundred thousand, seventy-seven".