212312101003 has 4 divisors (see below), whose sum is σ = 217249591768. Its totient is φ = 207374610240.

The previous prime is 212312100961. The next prime is 212312101031. The reversal of 212312101003 is 300101213212.

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 212312101003 - 2¹⁷ = 212311969931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212312101073) 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, 2468745318 + ... + 2468745403.

It is an arithmetic number, because the mean of its divisors is an integer number (54312397942).

Almost surely, 2^212312101003 is an apocalyptic number.

212312101003 is a deficient number, since it is larger than the sum of its proper divisors (4937490765).

212312101003 is an equidigital number, since it uses as much as digits as its factorization.

212312101003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937490764.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 212312101003 its reverse (300101213212), we get a palindrome (512413314215).

The spelling of 212312101003 in words is "two hundred twelve billion, three hundred twelve million, one hundred one thousand, three".