231313313211 has 32 divisors (see below), whose sum is σ = 344933664768. Its totient is φ = 137189445120.

The previous prime is 231313313201. The next prime is 231313313243. The reversal of 231313313211 is 112313313132.

It is not a de Polignac number, because 231313313211 - 2¹³ = 231313305019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231313313201) 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 31 ways as a sum of consecutive naturals, for example, 1633276 + ... + 1769241.

It is an arithmetic number, because the mean of its divisors is an integer number (10779177024).

Almost surely, 2^231313313211 is an apocalyptic number.

231313313211 is a deficient number, since it is larger than the sum of its proper divisors (113620351557).

231313313211 is a wasteful number, since it uses less digits than its factorization.

231313313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402611.

The product of its digits is 972, while the sum is 24.

Adding to 231313313211 its reverse (112313313132), we get a palindrome (343626626343).

The spelling of 231313313211 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred thirteen thousand, two hundred eleven".