1011100860 has 192 divisors, whose sum is σ = 3922007040. Its totient is φ = 210090240.

The previous prime is 1011100843. The next prime is 1011100879. The reversal of 1011100860 is 680011101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29422 + ... + 53738.

It is an arithmetic number, because the mean of its divisors is an integer number (20427120).

Almost surely, 2^1011100860 is an apocalyptic number.

1011100860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011100860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961003520).

1011100860 is an abundant number, since it is smaller than the sum of its proper divisors (2910906180).

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

1011100860 is a wasteful number, since it uses less digits than its factorization.

1011100860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24353 (or 24345 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

The square root of 1011100860 is about 31797.8121888912. The cubic root of 1011100860 is about 1003.6866783667.

Adding to 1011100860 its reverse (680011101), we get a palindrome (1691111961).

The spelling of 1011100860 in words is "one billion, eleven million, one hundred thousand, eight hundred sixty".