212103123303 has 4 divisors (see below), whose sum is σ = 282804164408. Its totient is φ = 141402082200.

The previous prime is 212103123277. The next prime is 212103123371. The reversal of 212103123303 is 303321301212.

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

It is not a de Polignac number, because 212103123303 - 2¹³ = 212103115111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212103123303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212103123373) 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, 35350520548 + ... + 35350520553.

It is an arithmetic number, because the mean of its divisors is an integer number (70701041102).

Almost surely, 2^212103123303 is an apocalyptic number.

212103123303 is a deficient number, since it is larger than the sum of its proper divisors (70701041105).

212103123303 is an equidigital number, since it uses as much as digits as its factorization.

212103123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70701041104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212103123303 its reverse (303321301212), we get a palindrome (515424424515).

The spelling of 212103123303 in words is "two hundred twelve billion, one hundred three million, one hundred twenty-three thousand, three hundred three".