101042111 has 2 divisors, whose sum is σ = 101042112. Its totient is φ = 101042110.

The previous prime is 101042107. The next prime is 101042129. The reversal of 101042111 is 111240101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101042111 - 2² = 101042107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101042092 and 101042101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101042141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50521055 + 50521056.

It is an arithmetic number, because the mean of its divisors is an integer number (50521056).

Almost surely, 2^101042111 is an apocalyptic number.

101042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101042111 is an equidigital number, since it uses as much as digits as its factorization.

101042111 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 11.

The square root of 101042111 is about 10051.9705033391. The cubic root of 101042111 is about 465.7656649976.

Adding to 101042111 its reverse (111240101), we get a palindrome (212282212).

The spelling of 101042111 in words is "one hundred one million, forty-two thousand, one hundred eleven".