1121100001003 has 2 divisors, whose sum is σ = 1121100001004. Its totient is φ = 1121100001002.

The previous prime is 1121100000919. The next prime is 1121100001019. The reversal of 1121100001003 is 3001000011211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121100001003 - 2²⁵ = 1121066446571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121100001093) 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 as a sum of consecutive naturals, namely, 560550000501 + 560550000502.

It is an arithmetic number, because the mean of its divisors is an integer number (560550000502).

Almost surely, 2^{1121100001003} is an apocalyptic number.

1121100001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121100001003 is an equidigital number, since it uses as much as digits as its factorization.

1121100001003 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.

Adding to 1121100001003 its reverse (3001000011211), we get a palindrome (4122100012214).

The spelling of 1121100001003 in words is "one trillion, one hundred twenty-one billion, one hundred million, one thousand, three".