231231002211 has 80 divisors (see below), whose sum is σ = 383584481280. Its totient is φ = 137629350720.

The previous prime is 231231002201. The next prime is 231231002243. The reversal of 231231002211 is 112200132132.

It is not a de Polignac number, because 231231002211 - 2¹⁵ = 231230969443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231231002201) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 86054110 + ... + 86056796.

It is an arithmetic number, because the mean of its divisors is an integer number (4794806016).

Almost surely, 2^231231002211 is an apocalyptic number.

231231002211 is a deficient number, since it is larger than the sum of its proper divisors (152353479069).

231231002211 is a wasteful number, since it uses less digits than its factorization.

231231002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231231002211 its reverse (112200132132), we get a palindrome (343431134343).

The spelling of 231231002211 in words is "two hundred thirty-one billion, two hundred thirty-one million, two thousand, two hundred eleven".