102100100111111 has 2 divisors, whose sum is σ = 102100100111112. Its totient is φ = 102100100111110.

The previous prime is 102100100111099. The next prime is 102100100111171. The reversal of 102100100111111 is 111111001001201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102100100111111 - 2⁶ = 102100100111047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102100100111092 and 102100100111101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102100100111171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050050055555 + 51050050055556.

It is an arithmetic number, because the mean of its divisors is an integer number (51050050055556).

Almost surely, 2^{102100100111111} is an apocalyptic number.

102100100111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100100111111 is an equidigital number, since it uses as much as digits as its factorization.

102100100111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 102100100111111 its reverse (111111001001201), we get a palindrome (213211101112312).

The spelling of 102100100111111 in words is "one hundred two trillion, one hundred billion, one hundred million, one hundred eleven thousand, one hundred eleven".