11023313231 has 8 divisors (see below), whose sum is σ = 12653087520. Its totient is φ = 9407292768.

The previous prime is 11023313149. The next prime is 11023313251. The reversal of 11023313231 is 13231332011.

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-11023313231 is a prime.

It is a super-2 number, since 2×11023313231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023313251) 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, 3436736 + ... + 3439941.

It is an arithmetic number, because the mean of its divisors is an integer number (1581635940).

Almost surely, 2^11023313231 is an apocalyptic number.

11023313231 is a deficient number, since it is larger than the sum of its proper divisors (1629774289).

11023313231 is an equidigital number, since it uses as much as digits as its factorization.

11023313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6876913.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11023313231 its reverse (13231332011), we get a palindrome (24254645242).

The spelling of 11023313231 in words is "eleven billion, twenty-three million, three hundred thirteen thousand, two hundred thirty-one".