1003120011 has 8 divisors (see below), whose sum is σ = 1486103760. Its totient is φ = 668746656.

The previous prime is 1003120007. The next prime is 1003120031. The reversal of 1003120011 is 1100213001.

It is not a de Polignac number, because 1003120011 - 2² = 1003120007 is a prime.

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 = 1003119975 and 1003120002.

It is not an unprimeable number, because it can be changed into a prime (1003120031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18576270 + ... + 18576323.

It is an arithmetic number, because the mean of its divisors is an integer number (185762970).

Almost surely, 2^1003120011 is an apocalyptic number.

1003120011 is a deficient number, since it is larger than the sum of its proper divisors (482983749).

1003120011 is an equidigital number, since it uses as much as digits as its factorization.

1003120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37152602 (or 37152596 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1003120011 is about 31672.0698881522. The cubic root of 1003120011 is about 1001.0389239299.

Adding to 1003120011 its reverse (1100213001), we get a palindrome (2103333012).

The spelling of 1003120011 in words is "one billion, three million, one hundred twenty thousand, eleven".