212103321331 has 6 divisors (see below), whose sum is σ = 233138361596. Its totient is φ = 192821201100.

The previous prime is 212103321323. The next prime is 212103321343. The reversal of 212103321331 is 133123301212.

It is not a de Polignac number, because 212103321331 - 2³ = 212103321323 is a prime.

It is a super-2 number, since 2×212103321331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212103321301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 876459885 + ... + 876460126.

Almost surely, 2^212103321331 is an apocalyptic number.

212103321331 is a deficient number, since it is larger than the sum of its proper divisors (21035040265).

212103321331 is a wasteful number, since it uses less digits than its factorization.

212103321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752920033 (or 1752920022 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212103321331 its reverse (133123301212), we get a palindrome (345226622543).

The spelling of 212103321331 in words is "two hundred twelve billion, one hundred three million, three hundred twenty-one thousand, three hundred thirty-one".