202112122312103 has 4 divisors (see below), whose sum is σ = 207574612104360. Its totient is φ = 196649632519848.

The previous prime is 202112122312099. The next prime is 202112122312123. The reversal of 202112122312103 is 301213221211202.

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 202112122312103 - 2² = 202112122312099 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 (202112122312123) 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, 2731244896073 + ... + 2731244896146.

It is an arithmetic number, because the mean of its divisors is an integer number (51893653026090).

Almost surely, 2^{202112122312103} is an apocalyptic number.

202112122312103 is a deficient number, since it is larger than the sum of its proper divisors (5462489792257).

202112122312103 is an equidigital number, since it uses as much as digits as its factorization.

202112122312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462489792256.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 202112122312103 its reverse (301213221211202), we get a palindrome (503325343523305).

The spelling of 202112122312103 in words is "two hundred two trillion, one hundred twelve billion, one hundred twenty-two million, three hundred twelve thousand, one hundred three".