212321131001 has 4 divisors (see below), whose sum is σ = 242652721152. Its totient is φ = 181989540852.

The previous prime is 212321130953. The next prime is 212321131007. The reversal of 212321131001 is 100131123212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212321131001 - 2³⁴ = 195141261817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212321131007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15165795065 + ... + 15165795078.

It is an arithmetic number, because the mean of its divisors is an integer number (60663180288).

Almost surely, 2^212321131001 is an apocalyptic number.

It is an amenable number.

212321131001 is a deficient number, since it is larger than the sum of its proper divisors (30331590151).

212321131001 is an equidigital number, since it uses as much as digits as its factorization.

212321131001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331590150.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212321131001 its reverse (100131123212), we get a palindrome (312452254213).

The spelling of 212321131001 in words is "two hundred twelve billion, three hundred twenty-one million, one hundred thirty-one thousand, one".