20012102203 has 4 divisors (see below), whose sum is σ = 21065370760. Its totient is φ = 18958833648.

The previous prime is 20012102167. The next prime is 20012102249. The reversal of 20012102203 is 30220121002.

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 20012102203 - 2²⁹ = 19475231291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012102603) 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, 526634250 + ... + 526634287.

It is an arithmetic number, because the mean of its divisors is an integer number (5266342690).

Almost surely, 2^20012102203 is an apocalyptic number.

20012102203 is a deficient number, since it is larger than the sum of its proper divisors (1053268557).

20012102203 is a wasteful number, since it uses less digits than its factorization.

20012102203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053268556.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20012102203 its reverse (30220121002), we get a palindrome (50232223205).

The spelling of 20012102203 in words is "twenty billion, twelve million, one hundred two thousand, two hundred three".