102102120209977 has 16 divisors (see below), whose sum is σ = 106331706657792. Its totient is φ = 97931085557760.

The previous prime is 102102120209951. The next prime is 102102120209989. The reversal of 102102120209977 is 779902021201201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102120209977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102120209777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118170628 + ... + 119031514.

It is an arithmetic number, because the mean of its divisors is an integer number (6645731666112).

Almost surely, 2^{102102120209977} is an apocalyptic number.

It is an amenable number.

102102120209977 is a deficient number, since it is larger than the sum of its proper divisors (4229586447815).

102102120209977 is a wasteful number, since it uses less digits than its factorization.

102102120209977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894888.

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 102102120209977 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, two hundred nine thousand, nine hundred seventy-seven".