2111012003 has 4 divisors (see below), whose sum is σ = 2155927200. Its totient is φ = 2066096808.

The previous prime is 2111011979. The next prime is 2111012063. The reversal of 2111012003 is 3002101112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111012003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111012063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22457528 + ... + 22457621.

It is an arithmetic number, because the mean of its divisors is an integer number (538981800).

Almost surely, 2^2111012003 is an apocalyptic number.

2111012003 is a deficient number, since it is larger than the sum of its proper divisors (44915197).

2111012003 is an equidigital number, since it uses as much as digits as its factorization.

2111012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44915196.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111012003 is about 45945.7506522638. The cubic root of 2111012003 is about 1282.8136354968.

Adding to 2111012003 its reverse (3002101112), we get a palindrome (5113113115).

The spelling of 2111012003 in words is "two billion, one hundred eleven million, twelve thousand, three".