1100030031 has 16 divisors (see below), whose sum is σ = 1632960000. Its totient is φ = 731874744.

The previous prime is 1100030021. The next prime is 1100030083. The reversal of 1100030031 is 1300300011.

It is not a de Polignac number, because 1100030031 - 2⁹ = 1100029519 is a prime.

It is a super-2 number, since 2×1100030031² = 2420132138203721922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1100029995 and 1100030022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100030021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27351 + ... + 54296.

It is an arithmetic number, because the mean of its divisors is an integer number (102060000).

Almost surely, 2^1100030031 is an apocalyptic number.

1100030031 is a deficient number, since it is larger than the sum of its proper divisors (532929969).

1100030031 is an equidigital number, since it uses as much as digits as its factorization.

1100030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82155 (or 82149 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 1100030031 is about 33166.7006348235. The cubic root of 1100030031 is about 1032.2895094327.

Adding to 1100030031 its reverse (1300300011), we get a palindrome (2400330042).

The spelling of 1100030031 in words is "one billion, one hundred million, thirty thousand, thirty-one".