1111121003 has 8 divisors (see below), whose sum is σ = 1214432640. Its totient is φ = 1012026240.

The previous prime is 1111120957. The next prime is 1111121021. The reversal of 1111121003 is 3001211111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111121003 - 2⁶ = 1111120939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111121023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053668 + ... + 1054721.

It is an arithmetic number, because the mean of its divisors is an integer number (151804080).

Almost surely, 2^1111121003 is an apocalyptic number.

1111121003 is a deficient number, since it is larger than the sum of its proper divisors (103311637).

1111121003 is a wasteful number, since it uses less digits than its factorization.

1111121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108437.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1111121003 is about 33333.4817113364. The cubic root of 1111121003 is about 1035.7472422820.

Adding to 1111121003 its reverse (3001211111), we get a palindrome (4112332114).

The spelling of 1111121003 in words is "one billion, one hundred eleven million, one hundred twenty-one thousand, three".