102012100120111 has 2 divisors, whose sum is σ = 102012100120112. Its totient is φ = 102012100120110.

The previous prime is 102012100120097. The next prime is 102012100120297. The reversal of 102012100120111 is 111021001210201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102012100120111 - 2⁹ = 102012100119599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012100120091 and 102012100120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102012100121111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006050060055 + 51006050060056.

It is an arithmetic number, because the mean of its divisors is an integer number (51006050060056).

Almost surely, 2^{102012100120111} is an apocalyptic number.

102012100120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012100120111 is an equidigital number, since it uses as much as digits as its factorization.

102012100120111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102012100120111 its reverse (111021001210201), we get a palindrome (213033101330312).

The spelling of 102012100120111 in words is "one hundred two trillion, twelve billion, one hundred million, one hundred twenty thousand, one hundred eleven".