212144103 has 14 divisors (see below), whose sum is σ = 318071744. Its totient is φ = 141428916.

The previous prime is 212144081. The next prime is 212144143. The reversal of 212144103 is 301441212.

It is not a de Polignac number, because 212144103 - 2⁶ = 212144039 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 (212144143) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 144775 + ... + 146232.

Almost surely, 2^212144103 is an apocalyptic number.

212144103 is a deficient number, since it is larger than the sum of its proper divisors (105927641).

212144103 is an frugal number, since it uses more digits than its factorization.

212144103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291025 (or 291010 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 212144103 is about 14565.1674552681. The cubic root of 212144103 is about 596.4082669931.

Adding to 212144103 its reverse (301441212), we get a palindrome (513585315).

The spelling of 212144103 in words is "two hundred twelve million, one hundred forty-four thousand, one hundred three".