102020020012111 has 2 divisors, whose sum is σ = 102020020012112. Its totient is φ = 102020020012110.

The previous prime is 102020020012093. The next prime is 102020020012117. The reversal of 102020020012111 is 111210020020201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102020020012111 - 2¹⁹ = 102020019487823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102020020012091 and 102020020012100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102020020012117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010010006055 + 51010010006056.

It is an arithmetic number, because the mean of its divisors is an integer number (51010010006056).

Almost surely, 2^{102020020012111} is an apocalyptic number.

102020020012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102020020012111 is an equidigital number, since it uses as much as digits as its factorization.

102020020012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102020020012111 its reverse (111210020020201), we get a palindrome (213230040032312).

The spelling of 102020020012111 in words is "one hundred two trillion, twenty billion, twenty million, twelve thousand, one hundred eleven".