1123230111231 has 8 divisors (see below), whose sum is σ = 1497645748144. Its totient is φ = 748817274240.

The previous prime is 1123230111217. The next prime is 1123230111253. The reversal of 1123230111231 is 1321110323211.

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

It is not a de Polignac number, because 1123230111231 - 2²⁷ = 1123095893503 is a prime.

It is a super-2 number, since 2×1123230111231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123230111198 and 1123230111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123230110231) 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, 560151 + ... + 1600071.

It is an arithmetic number, because the mean of its divisors is an integer number (187205718518).

Almost surely, 2^{1123230111231} is an apocalyptic number.

1123230111231 is a deficient number, since it is larger than the sum of its proper divisors (374415636913).

1123230111231 is a wasteful number, since it uses less digits than its factorization.

1123230111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399961.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123230111231 its reverse (1321110323211), we get a palindrome (2444340434442).

The spelling of 1123230111231 in words is "one trillion, one hundred twenty-three billion, two hundred thirty million, one hundred eleven thousand, two hundred thirty-one".