20102011003 has 4 divisors (see below), whose sum is σ = 20173043128. Its totient is φ = 20030978880.

The previous prime is 20102010953. The next prime is 20102011037. The reversal of 20102011003 is 30011020102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102011003 - 2²⁵ = 20068456571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102011093) 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, 35515638 + ... + 35516203.

It is an arithmetic number, because the mean of its divisors is an integer number (5043260782).

Almost surely, 2^20102011003 is an apocalyptic number.

20102011003 is a deficient number, since it is larger than the sum of its proper divisors (71032125).

20102011003 is an equidigital number, since it uses as much as digits as its factorization.

20102011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71032124.

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

Adding to 20102011003 its reverse (30011020102), we get a palindrome (50113031105).

Subtracting 20102011003 from its reverse (30011020102), we obtain a palindrome (9909009099).

The spelling of 20102011003 in words is "twenty billion, one hundred two million, eleven thousand, three".