211231320110321 has 8 divisors (see below), whose sum is σ = 242325121171584. Its totient is φ = 180366993596160.

The previous prime is 211231320110311. The next prime is 211231320110359. The reversal of 211231320110321 is 123011023132112.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-211231320110321 is a prime.

It is a super-2 number, since 2×211231320110321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211231320110311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57368634800 + ... + 57368638481.

It is an arithmetic number, because the mean of its divisors is an integer number (30290640146448).

Almost surely, 2^{211231320110321} is an apocalyptic number.

It is an amenable number.

211231320110321 is a deficient number, since it is larger than the sum of its proper divisors (31093801061263).

211231320110321 is a wasteful number, since it uses less digits than its factorization.

211231320110321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114737273551.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 211231320110321 its reverse (123011023132112), we get a palindrome (334242343242433).

The spelling of 211231320110321 in words is "two hundred eleven trillion, two hundred thirty-one billion, three hundred twenty million, one hundred ten thousand, three hundred twenty-one".