212012140103 has 4 divisors (see below), whose sum is σ = 224483442480. Its totient is φ = 199540837728.

The previous prime is 212012140063. The next prime is 212012140111. The reversal of 212012140103 is 301041210212.

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 212012140103 - 2²⁰ = 212011091527 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 12471302359 = 212012140103 / (2 + 1 + 2 + 0 + 1 + 2 + 1 + 4 + 0 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012140133) 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, 6235651163 + ... + 6235651196.

It is an arithmetic number, because the mean of its divisors is an integer number (56120860620).

Almost surely, 2^212012140103 is an apocalyptic number.

212012140103 is a deficient number, since it is larger than the sum of its proper divisors (12471302377).

212012140103 is a wasteful number, since it uses less digits than its factorization.

212012140103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471302376.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212012140103 its reverse (301041210212), we get a palindrome (513053350315).

The spelling of 212012140103 in words is "two hundred twelve billion, twelve million, one hundred forty thousand, one hundred three".