231004111 has 16 divisors (see below), whose sum is σ = 268551360. Its totient is φ = 196922880.

The previous prime is 231004099. The next prime is 231004121. The reversal of 231004111 is 111400132.

It is a cyclic number.

It is not a de Polignac number, because 231004111 - 2⁵ = 231004079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231004091 and 231004100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231004121) 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, 4650 + ... + 21991.

It is an arithmetic number, because the mean of its divisors is an integer number (16784460).

Almost surely, 2^231004111 is an apocalyptic number.

231004111 is a deficient number, since it is larger than the sum of its proper divisors (37547249).

231004111 is a wasteful number, since it uses less digits than its factorization.

231004111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26706.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 231004111 is about 15198.8193949399. The cubic root of 231004111 is about 613.5828838065.

Adding to 231004111 its reverse (111400132), we get a palindrome (342404243).

The spelling of 231004111 in words is "two hundred thirty-one million, four thousand, one hundred eleven".