1011011085 has 32 divisors (see below), whose sum is σ = 2054119680. Its totient is φ = 462176064.

The previous prime is 1011011017. The next prime is 1011011107. The reversal of 1011011085 is 5801101101.

It is a happy number.

It is not a de Polignac number, because 1011011085 - 2¹⁶ = 1010945549 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533982 + ... + 535871.

It is an arithmetic number, because the mean of its divisors is an integer number (64191240).

Almost surely, 2^1011011085 is an apocalyptic number.

1011011085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011011085 is an abundant number, since it is smaller than the sum of its proper divisors (1043108595).

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

1011011085 is a wasteful number, since it uses less digits than its factorization.

1011011085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069874 (or 1069868 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

The square root of 1011011085 is about 31796.4005038306. The cubic root of 1011011085 is about 1003.6569719209.

Adding to 1011011085 its reverse (5801101101), we get a palindrome (6812112186).

The spelling of 1011011085 in words is "one billion, eleven million, eleven thousand, eighty-five".