102110210109977 has 2 divisors, whose sum is σ = 102110210109978. Its totient is φ = 102110210109976.

The previous prime is 102110210109937. The next prime is 102110210109979. The reversal of 102110210109977 is 779901012011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88493549224201 + 13616660885776 = 9407101^2 + 3690076^2 .

It is a cyclic number.

It is not a de Polignac number, because 102110210109977 - 2³⁰ = 102109136368153 is a prime.

Together with 102110210109979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102110210109979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055105054988 + 51055105054989.

It is an arithmetic number, because the mean of its divisors is an integer number (51055105054989).

Almost surely, 2^{102110210109977} is an apocalyptic number.

It is an amenable number.

102110210109977 is a deficient number, since it is larger than the sum of its proper divisors (1).

102110210109977 is an equidigital number, since it uses as much as digits as its factorization.

102110210109977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 41.

The spelling of 102110210109977 in words is "one hundred two trillion, one hundred ten billion, two hundred ten million, one hundred nine thousand, nine hundred seventy-seven".