1012111110 has 24 divisors (see below), whose sum is σ = 2631489120. Its totient is φ = 269896272.

The previous prime is 1012111091. The next prime is 1012111123. The reversal of 1012111110 is 111112101.

1012111110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1012111092 and 1012111101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5622750 + ... + 5622929.

It is an arithmetic number, because the mean of its divisors is an integer number (109645380).

Almost surely, 2^1012111110 is an apocalyptic number.

1012111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012111110 is an abundant number, since it is smaller than the sum of its proper divisors (1619378010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012111110 is a wasteful number, since it uses less digits than its factorization.

1012111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245692 (or 11245689 counting only the distinct ones).

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

The square root of 1012111110 is about 31813.6937497047. The cubic root of 1012111110 is about 1004.0208477811.

Adding to 1012111110 its reverse (111112101), we get a palindrome (1123223211).

Subtracting from 1012111110 its reverse (111112101), we obtain a palindrome (900999009).

The spelling of 1012111110 in words is "one billion, twelve million, one hundred eleven thousand, one hundred ten".