11023320231 has 144 divisors (see below), whose sum is σ = 21411936000. Its totient is φ = 5388768000.

The previous prime is 11023320227. The next prime is 11023320241. The reversal of 11023320231 is 13202332011.

11023320231 is a `hidden beast` number, since 1 + 102 + 332 + 0 + 231 = 666.

It is not a de Polignac number, because 11023320231 - 2² = 11023320227 is a prime.

It is a super-2 number, since 2×11023320231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023320241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18341331 + ... + 18341931.

It is an arithmetic number, because the mean of its divisors is an integer number (148694000).

Almost surely, 2^11023320231 is an apocalyptic number.

11023320231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11023320231 is a deficient number, since it is larger than the sum of its proper divisors (10388615769).

11023320231 is a wasteful number, since it uses less digits than its factorization.

11023320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11023320231 its reverse (13202332011), we get a palindrome (24225652242).

The spelling of 11023320231 in words is "eleven billion, twenty-three million, three hundred twenty thousand, two hundred thirty-one".