1100031040 has 28 divisors (see below), whose sum is σ = 2619449676. Its totient is φ = 440012288.

The previous prime is 1100031017. The next prime is 1100031043. The reversal of 1100031040 is 401300011.

It is a happy number.

1100031040 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 579461184 + 520569856 = 24072^2 + 22816^2 .

It is a super-3 number, since 3×1100031040³ (a number of 28 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1100031043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718479 + ... + 1719118.

Almost surely, 2^1100031040 is an apocalyptic number.

1100031040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100031040 is an abundant number, since it is smaller than the sum of its proper divisors (1519418636).

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

1100031040 is an equidigital number, since it uses as much as digits as its factorization.

1100031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3437614 (or 3437604 counting only the distinct ones).

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

The square root of 1100031040 is about 33166.7158458597. The cubic root of 1100031040 is about 1032.2898250544.

Adding to 1100031040 its reverse (401300011), we get a palindrome (1501331051).

The spelling of 1100031040 in words is "one billion, one hundred million, thirty-one thousand, forty".