102120000020111 has 2 divisors, whose sum is σ = 102120000020112. Its totient is φ = 102120000020110.

The previous prime is 102120000020063. The next prime is 102120000020117. The reversal of 102120000020111 is 111020000021201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102120000020111 - 2¹⁴ = 102120000003727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102120000020092 and 102120000020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102120000020117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51060000010055 + 51060000010056.

It is an arithmetic number, because the mean of its divisors is an integer number (51060000010056).

Almost surely, 2^{102120000020111} is an apocalyptic number.

102120000020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102120000020111 is an equidigital number, since it uses as much as digits as its factorization.

102120000020111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102120000020111 its reverse (111020000021201), we get a palindrome (213140000041312).

The spelling of 102120000020111 in words is "one hundred two trillion, one hundred twenty billion, twenty thousand, one hundred eleven".