1011102003 has 12 divisors (see below), whose sum is σ = 1461302128. Its totient is φ = 673688880.

The previous prime is 1011101981. The next prime is 1011102089. The reversal of 1011102003 is 3002011101.

It is not a de Polignac number, because 1011102003 - 2¹⁷ = 1010970931 is a prime.

It is a super-2 number, since 2×1011102003² = 2044654520941224018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011100003) 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 in 11 ways as a sum of consecutive naturals, for example, 14200 + ... + 47157.

Almost surely, 2^1011102003 is an apocalyptic number.

1011102003 is a deficient number, since it is larger than the sum of its proper divisors (450200125).

1011102003 is a wasteful number, since it uses less digits than its factorization.

1011102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63194 (or 63191 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1011102003 is about 31797.8301618208. The cubic root of 1011102003 is about 1003.6870565727.

Adding to 1011102003 its reverse (3002011101), we get a palindrome (4013113104).

The spelling of 1011102003 in words is "one billion, eleven million, one hundred two thousand, three".