101020112020111 has 2 divisors, whose sum is σ = 101020112020112. Its totient is φ = 101020112020110.

The previous prime is 101020112020099. The next prime is 101020112020171. The reversal of 101020112020111 is 111020211020101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101020112020111 - 2¹³ = 101020112011919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101020112020091 and 101020112020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101020112020171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510056010055 + 50510056010056.

It is an arithmetic number, because the mean of its divisors is an integer number (50510056010056).

Almost surely, 2^{101020112020111} is an apocalyptic number.

101020112020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020112020111 is an equidigital number, since it uses as much as digits as its factorization.

101020112020111 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 101020112020111 its reverse (111020211020101), we get a palindrome (212040323040212).

The spelling of 101020112020111 in words is "one hundred one trillion, twenty billion, one hundred twelve million, twenty thousand, one hundred eleven".