1020000111 has 16 divisors (see below), whose sum is σ = 1479122400. Its totient is φ = 621475200.

The previous prime is 1020000109. The next prime is 1020000131. The reversal of 1020000111 is 1110000201.

It is not a de Polignac number, because 1020000111 - 2¹ = 1020000109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020000111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020000131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125536 + ... + 133413.

It is an arithmetic number, because the mean of its divisors is an integer number (92445150).

Almost surely, 2^1020000111 is an apocalyptic number.

1020000111 is a deficient number, since it is larger than the sum of its proper divisors (459122289).

1020000111 is a wasteful number, since it uses less digits than its factorization.

1020000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259066.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1020000111 is about 31937.4405831150. The cubic root of 1020000111 is about 1006.6227460749.

Adding to 1020000111 its reverse (1110000201), we get a palindrome (2130000312).

The spelling of 1020000111 in words is "one billion, twenty million, one hundred eleven", and thus it is an aban number.