212320211043231 has 24 divisors (see below), whose sum is σ = 307226708231040. Its totient is φ = 141296769264336.

The previous prime is 212320211043223. The next prime is 212320211043253. The reversal of 212320211043231 is 132340112023212.

212320211043231 is a `hidden beast` number, since 2 + 1 + 2 + 320 + 2 + 1 + 10 + 4 + 323 + 1 = 666.

It is not a de Polignac number, because 212320211043231 - 2³ = 212320211043223 is a prime.

It is a super-4 number, since 4×212320211043231⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 212320211043195 and 212320211043204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320211043431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22306660 + ... + 30368198.

It is an arithmetic number, because the mean of its divisors is an integer number (12801112842960).

Almost surely, 2^{212320211043231} is an apocalyptic number.

212320211043231 is a deficient number, since it is larger than the sum of its proper divisors (94906497187809).

212320211043231 is a wasteful number, since it uses less digits than its factorization.

212320211043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8066715 (or 8066712 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 212320211043231 its reverse (132340112023212), we get a palindrome (344660323066443).

The spelling of 212320211043231 in words is "two hundred twelve trillion, three hundred twenty billion, two hundred eleven million, forty-three thousand, two hundred thirty-one".