212321320031 has 8 divisors (see below), whose sum is σ = 217408819584. Its totient is φ = 207240629400.

The previous prime is 212321319989. The next prime is 212321320033. The reversal of 212321320031 is 130023123212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212321320031 - 2⁶ = 212321319967 is a prime.

It is a super-2 number, since 2×212321320031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212321319985 and 212321320012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321320033) 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 7 ways as a sum of consecutive naturals, for example, 1639091 + ... + 1763876.

It is an arithmetic number, because the mean of its divisors is an integer number (27176102448).

Almost surely, 2^212321320031 is an apocalyptic number.

212321320031 is a deficient number, since it is larger than the sum of its proper divisors (5087499553).

212321320031 is a wasteful number, since it uses less digits than its factorization.

212321320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404461.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212321320031 its reverse (130023123212), we get a palindrome (342344443243).

The spelling of 212321320031 in words is "two hundred twelve billion, three hundred twenty-one million, three hundred twenty thousand, thirty-one".