1011200113 has 24 divisors (see below), whose sum is σ = 1302429024. Its totient is φ = 776160000.

The previous prime is 1011200087. The next prime is 1011200117. The reversal of 1011200113 is 3110021101.

It is not a de Polignac number, because 1011200113 - 2⁵ = 1011200081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011200113.

It is not an unprimeable number, because it can be changed into a prime (1011200117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22113 + ... + 50113.

It is an arithmetic number, because the mean of its divisors is an integer number (54267876).

Almost surely, 2^1011200113 is an apocalyptic number.

It is an amenable number.

1011200113 is a deficient number, since it is larger than the sum of its proper divisors (291228911).

1011200113 is a wasteful number, since it uses less digits than its factorization.

1011200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28093 (or 28086 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1011200113 is about 31799.3728397275. The cubic root of 1011200113 is about 1003.7195190253.

Adding to 1011200113 its reverse (3110021101), we get a palindrome (4121221214).

The spelling of 1011200113 in words is "one billion, eleven million, two hundred thousand, one hundred thirteen".