1003042111 has 4 divisors (see below), whose sum is σ = 1037629800. Its totient is φ = 968454424.

The previous prime is 1003042069. The next prime is 1003042141. The reversal of 1003042111 is 1112403001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1003042111 - 2¹⁹ = 1002517823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003042091 and 1003042100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003042141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17293801 + ... + 17293858.

It is an arithmetic number, because the mean of its divisors is an integer number (259407450).

Almost surely, 2^1003042111 is an apocalyptic number.

1003042111 is a deficient number, since it is larger than the sum of its proper divisors (34587689).

1003042111 is an equidigital number, since it uses as much as digits as its factorization.

1003042111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34587688.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1003042111 is about 31670.8400741123. The cubic root of 1003042111 is about 1001.0130104633.

Adding to 1003042111 its reverse (1112403001), we get a palindrome (2115445112).

The spelling of 1003042111 in words is "one billion, three million, forty-two thousand, one hundred eleven".