1020101010111 has 20 divisors (see below), whose sum is σ = 1549682646600. Its totient is φ = 668540771856.

The previous prime is 1020101010043. The next prime is 1020101010157. The reversal of 1020101010111 is 1110101010201.

1020101010111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020101010111 - 2³¹ = 1017953526463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1020101010093 and 1020101010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020101015111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106722676 + ... + 106732233.

It is an arithmetic number, because the mean of its divisors is an integer number (77484132330).

Almost surely, 2^{1020101010111} is an apocalyptic number.

1020101010111 is a deficient number, since it is larger than the sum of its proper divisors (529581636489).

1020101010111 is an equidigital number, since it uses as much as digits as its factorization.

1020101010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213454980 (or 213454971 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1020101010111 its reverse (1110101010201), we get a palindrome (2130202020312).

The spelling of 1020101010111 in words is "one trillion, twenty billion, one hundred one million, ten thousand, one hundred eleven".