1000113040 has 20 divisors (see below), whose sum is σ = 2325263004. Its totient is φ = 400045184.

The previous prime is 1000113031. The next prime is 1000113073. The reversal of 1000113040 is 403110001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 609497344 + 390615696 = 24688^2 + 19764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6250627 + ... + 6250786.

Almost surely, 2^1000113040 is an apocalyptic number.

1000113040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000113040 is an abundant number, since it is smaller than the sum of its proper divisors (1325149964).

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

1000113040 is a wasteful number, since it uses less digits than its factorization.

1000113040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12501426 (or 12501420 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1000113040 is about 31624.5638705105. The cubic root of 1000113040 is about 1000.0376785803.

Adding to 1000113040 its reverse (403110001), we get a palindrome (1403223041).

The spelling of 1000113040 in words is "one billion, one hundred thirteen thousand, forty".