1020100000111 has 4 divisors (see below), whose sum is σ = 1022879564512. Its totient is φ = 1017320435712.

The previous prime is 1020100000109. The next prime is 1020100000147. The reversal of 1020100000111 is 1110000010201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020100000111 - 2¹ = 1020100000109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020100000094 and 1020100000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100000151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389781650 + ... + 1389782383.

It is an arithmetic number, because the mean of its divisors is an integer number (255719891128).

Almost surely, 2^{1020100000111} is an apocalyptic number.

1020100000111 is a deficient number, since it is larger than the sum of its proper divisors (2779564401).

1020100000111 is an equidigital number, since it uses as much as digits as its factorization.

1020100000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779564400.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1020100000111 its reverse (1110000010201), we get a palindrome (2130100010312).

The spelling of 1020100000111 in words is "one trillion, twenty billion, one hundred million, one hundred eleven", and thus it is an aban number.