20212303103 has 4 divisors (see below), whose sum is σ = 20401203240. Its totient is φ = 20023402968.

The previous prime is 20212303099. The next prime is 20212303117. The reversal of 20212303103 is 30130321202.

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 20212303103 - 2² = 20212303099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212303003) 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, 94449908 + ... + 94450121.

It is an arithmetic number, because the mean of its divisors is an integer number (5100300810).

Almost surely, 2^20212303103 is an apocalyptic number.

20212303103 is a deficient number, since it is larger than the sum of its proper divisors (188900137).

20212303103 is a wasteful number, since it uses less digits than its factorization.

20212303103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188900136.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20212303103 its reverse (30130321202), we get a palindrome (50342624305).

The spelling of 20212303103 in words is "twenty billion, two hundred twelve million, three hundred three thousand, one hundred three".