231211103111223 has 8 divisors (see below), whose sum is σ = 313335265418736. Its totient is φ = 151613838105600.

The previous prime is 231211103111189. The next prime is 231211103111227. The reversal of 231211103111223 is 322111301112132.

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

It is not a de Polignac number, because 231211103111223 - 2⁹ = 231211103110711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231211103111193 and 231211103111202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231211103111227) 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, 631724325258 + ... + 631724325623.

It is an arithmetic number, because the mean of its divisors is an integer number (39166908177342).

Almost surely, 2^{231211103111223} is an apocalyptic number.

231211103111223 is a deficient number, since it is larger than the sum of its proper divisors (82124162307513).

231211103111223 is a wasteful number, since it uses less digits than its factorization.

231211103111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263448650945.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 231211103111223 its reverse (322111301112132), we get a palindrome (553322404223355).

The spelling of 231211103111223 in words is "two hundred thirty-one trillion, two hundred eleven billion, one hundred three million, one hundred eleven thousand, two hundred twenty-three".