1111012003 has 2 divisors, whose sum is σ = 1111012004. Its totient is φ = 1111012002.

The previous prime is 1111011989. The next prime is 1111012013. The reversal of 1111012003 is 3002101111.

It is an a-pointer prime, because the next prime (1111012013) can be obtained adding 1111012003 to its sum of digits (10).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111012003 - 2²⁹ = 574141091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555506001 + 555506002.

It is an arithmetic number, because the mean of its divisors is an integer number (555506002).

Almost surely, 2^1111012003 is an apocalyptic number.

1111012003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111012003 is an equidigital number, since it uses as much as digits as its factorization.

1111012003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1111012003 is about 33331.8466785145. The cubic root of 1111012003 is about 1035.7133725412.

Adding to 1111012003 its reverse (3002101111), we get a palindrome (4113113114).

The spelling of 1111012003 in words is "one billion, one hundred eleven million, twelve thousand, three".