11231231131223 has 8 divisors (see below), whose sum is σ = 11316152239392. Its totient is φ = 11146352651136.

The previous prime is 11231231131213. The next prime is 11231231131273. The reversal of 11231231131223 is 32213113213211.

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

It is a cyclic number.

It is not a de Polignac number, because 11231231131223 - 2¹⁰ = 11231231130199 is a prime.

It is a super-2 number, since 2×11231231131223² (a number of 27 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 = 11231231131192 and 11231231131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231231131213) 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, 10127990 + ... + 11182067.

It is an arithmetic number, because the mean of its divisors is an integer number (1414519029924).

Almost surely, 2^{11231231131223} is an apocalyptic number.

11231231131223 is a deficient number, since it is larger than the sum of its proper divisors (84921108169).

11231231131223 is a wasteful number, since it uses less digits than its factorization.

11231231131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21314041.

The product of its digits is 1296, while the sum is 26.

Adding to 11231231131223 its reverse (32213113213211), we get a palindrome (43444344344434).

The spelling of 11231231131223 in words is "eleven trillion, two hundred thirty-one billion, two hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty-three".