111031211223 has 24 divisors (see below), whose sum is σ = 171493775856. Its totient is φ = 68976864000.

The previous prime is 111031211167. The next prime is 111031211227. The reversal of 111031211223 is 322112130111.

It is not a de Polignac number, because 111031211223 - 2¹² = 111031207127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111031211196 and 111031211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111031211227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3577093 + ... + 3607998.

It is an arithmetic number, because the mean of its divisors is an integer number (7145573994).

Almost surely, 2^111031211223 is an apocalyptic number.

111031211223 is a deficient number, since it is larger than the sum of its proper divisors (60462564633).

111031211223 is a wasteful number, since it uses less digits than its factorization.

111031211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185215 (or 7185212 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111031211223 its reverse (322112130111), we get a palindrome (433143341334).

The spelling of 111031211223 in words is "one hundred eleven billion, thirty-one million, two hundred eleven thousand, two hundred twenty-three".