102101111231111 has 2 divisors, whose sum is σ = 102101111231112. Its totient is φ = 102101111231110.

The previous prime is 102101111231069. The next prime is 102101111231159. The reversal of 102101111231111 is 111132111101201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101111231111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102101111231111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102101111231611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050555615555 + 51050555615556.

It is an arithmetic number, because the mean of its divisors is an integer number (51050555615556).

Almost surely, 2^{102101111231111} is an apocalyptic number.

102101111231111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101111231111 is an equidigital number, since it uses as much as digits as its factorization.

102101111231111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 17.

Adding to 102101111231111 its reverse (111132111101201), we get a palindrome (213233222332312).

The spelling of 102101111231111 in words is "one hundred two trillion, one hundred one billion, one hundred eleven million, two hundred thirty-one thousand, one hundred eleven".