20110012003 has 4 divisors (see below), whose sum is σ = 20114140320. Its totient is φ = 20105883688.

The previous prime is 20110011941. The next prime is 20110012009. The reversal of 20110012003 is 30021001102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30021001102 = 2 ⋅15010500551.

It is a cyclic number.

It is not a de Polignac number, because 20110012003 - 2⁹ = 20110011491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110012009) 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 in 3 ways as a sum of consecutive naturals, for example, 2056843 + ... + 2066596.

It is an arithmetic number, because the mean of its divisors is an integer number (5028535080).

Almost surely, 2^20110012003 is an apocalyptic number.

20110012003 is a deficient number, since it is larger than the sum of its proper divisors (4128317).

20110012003 is an equidigital number, since it uses as much as digits as its factorization.

20110012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128316.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20110012003 its reverse (30021001102), we get a palindrome (50131013105).

The spelling of 20110012003 in words is "twenty billion, one hundred ten million, twelve thousand, three".