231121302211 has 8 divisors (see below), whose sum is σ = 235550268000. Its totient is φ = 226694861952.

The previous prime is 231121302199. The next prime is 231121302229. The reversal of 231121302211 is 112203121132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231121302211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231121302241) 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, 446086 + ... + 813163.

It is an arithmetic number, because the mean of its divisors is an integer number (29443783500).

Almost surely, 2^231121302211 is an apocalyptic number.

231121302211 is a deficient number, since it is larger than the sum of its proper divisors (4428965789).

231121302211 is a wasteful number, since it uses less digits than its factorization.

231121302211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262765.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 231121302211 its reverse (112203121132), we get a palindrome (343324423343).

The spelling of 231121302211 in words is "two hundred thirty-one billion, one hundred twenty-one million, three hundred two thousand, two hundred eleven".