1111001101003 has 2 divisors, whose sum is σ = 1111001101004. Its totient is φ = 1111001101002.

The previous prime is 1111001100947. The next prime is 1111001101019. The reversal of 1111001101003 is 3001011001111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111001101003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111001101703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500550501 + 555500550502.

It is an arithmetic number, because the mean of its divisors is an integer number (555500550502).

Almost surely, 2^{1111001101003} is an apocalyptic number.

1111001101003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111001101003 is an equidigital number, since it uses as much as digits as its factorization.

1111001101003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3, while the sum is 10.

Adding to 1111001101003 its reverse (3001011001111), we get a palindrome (4112012102114).

The spelling of 1111001101003 in words is "one trillion, one hundred eleven billion, one million, one hundred one thousand, three".