1101012003 has 24 divisors (see below), whose sum is σ = 1957356128. Its totient is φ = 580753152.

The previous prime is 1101011957. The next prime is 1101012023. The reversal of 1101012003 is 3002101011.

It is not a de Polignac number, because 1101012003 - 2⁹ = 1101011491 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1101012023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 671350 + ... + 672987.

Almost surely, 2^1101012003 is an apocalyptic number.

1101012003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1101012003 is a deficient number, since it is larger than the sum of its proper divisors (856344125).

1101012003 is a wasteful number, since it uses less digits than its factorization.

1101012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344363 (or 1344360 counting only the distinct ones).

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

The square root of 1101012003 is about 33181.5009154197. The cubic root of 1101012003 is about 1032.5965852657.

Adding to 1101012003 its reverse (3002101011), we get a palindrome (4103113014).

The spelling of 1101012003 in words is "one billion, one hundred one million, twelve thousand, three".