231101213223 has 16 divisors (see below), whose sum is σ = 309925056896. Its totient is φ = 153172905120.

The previous prime is 231101213177. The next prime is 231101213243. The reversal of 231101213223 is 322312101132.

It is not a de Polignac number, because 231101213223 - 2⁸ = 231101212967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231101213223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231101213243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1919736 + ... + 2036562.

It is an arithmetic number, because the mean of its divisors is an integer number (19370316056).

Almost surely, 2^231101213223 is an apocalyptic number.

231101213223 is a deficient number, since it is larger than the sum of its proper divisors (78823843673).

231101213223 is a wasteful number, since it uses less digits than its factorization.

231101213223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120654.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231101213223 its reverse (322312101132), we get a palindrome (553413314355).

The spelling of 231101213223 in words is "two hundred thirty-one billion, one hundred one million, two hundred thirteen thousand, two hundred twenty-three".