101111020111111 has 2 divisors, whose sum is σ = 101111020111112. Its totient is φ = 101111020111110.

The previous prime is 101111020111099. The next prime is 101111020111141. The reversal of 101111020111111 is 111111020111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101111020111111 - 2²¹ = 101111018013959 is a prime.

It is a super-3 number, since 3×101111020111111³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101111020111091 and 101111020111100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111020111141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555510055555 + 50555510055556.

It is an arithmetic number, because the mean of its divisors is an integer number (50555510055556).

Almost surely, 2^{101111020111111} is an apocalyptic number.

101111020111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111020111111 is an equidigital number, since it uses as much as digits as its factorization.

101111020111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 13.

Adding to 101111020111111 its reverse (111111020111101), we get a palindrome (212222040222212).

The spelling of 101111020111111 in words is "one hundred one trillion, one hundred eleven billion, twenty million, one hundred eleven thousand, one hundred eleven".