10003120011 has 6 divisors (see below), whose sum is σ = 14448951140. Its totient is φ = 6668746668.

The previous prime is 10003120009. The next prime is 10003120031. The reversal of 10003120011 is 11002130001.

It is not a de Polignac number, because 10003120011 - 2¹ = 10003120009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1111457779 = 10003120011 / (1 + 0 + 0 + 0 + 3 + 1 + 2 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10003119975 and 10003120002.

It is not an unprimeable number, because it can be changed into a prime (10003120031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555728881 + ... + 555728898.

Almost surely, 2^10003120011 is an apocalyptic number.

10003120011 is a deficient number, since it is larger than the sum of its proper divisors (4445831129).

10003120011 is a wasteful number, since it uses less digits than its factorization.

10003120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111457785 (or 1111457782 counting only the distinct ones).

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

Adding to 10003120011 its reverse (11002130001), we get a palindrome (21005250012).

The spelling of 10003120011 in words is "ten billion, three million, one hundred twenty thousand, eleven".