1020112111 has 8 divisors (see below), whose sum is σ = 1042550784. Its totient is φ = 997704120.

The previous prime is 1020112087. The next prime is 1020112127. The reversal of 1020112111 is 1112110201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1020112111 - 2¹⁵ = 1020079343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020112141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67546 + ... + 81256.

It is an arithmetic number, because the mean of its divisors is an integer number (130318848).

Almost surely, 2^1020112111 is an apocalyptic number.

1020112111 is a deficient number, since it is larger than the sum of its proper divisors (22438673).

1020112111 is a wasteful number, since it uses less digits than its factorization.

1020112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15341.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1020112111 is about 31939.1939629039. The cubic root of 1020112111 is about 1006.6595884308.

Adding to 1020112111 its reverse (1112110201), we get a palindrome (2132222312).

The spelling of 1020112111 in words is "one billion, twenty million, one hundred twelve thousand, one hundred eleven".