11231023231 has 8 divisors (see below), whose sum is σ = 11286282240. Its totient is φ = 11175833592.

The previous prime is 11231023217. The next prime is 11231023249. The reversal of 11231023231 is 13232013211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11231023231 is a prime.

It is a super-2 number, since 2×11231023231² (a number of 21 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 = 11231023199 and 11231023208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231023931) 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, 323586 + ... + 356608.

It is an arithmetic number, because the mean of its divisors is an integer number (1410785280).

Almost surely, 2^11231023231 is an apocalyptic number.

11231023231 is a deficient number, since it is larger than the sum of its proper divisors (55259009).

11231023231 is a wasteful number, since it uses less digits than its factorization.

11231023231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34685.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11231023231 its reverse (13232013211), we get a palindrome (24463036442).

The spelling of 11231023231 in words is "eleven billion, two hundred thirty-one million, twenty-three thousand, two hundred thirty-one".