11230323012 has 36 divisors (see below), whose sum is σ = 30057630876. Its totient is φ = 3523238400.

The previous prime is 11230323007. The next prime is 11230323019. The reversal of 11230323012 is 21032303211.

It can be written as a sum of positive squares in 2 ways, for example, as 7193753856 + 4036569156 = 84816^2 + 63534^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11230323012² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11230323019) 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 11 ways as a sum of consecutive naturals, for example, 9174489 + ... + 9175712.

It is an arithmetic number, because the mean of its divisors is an integer number (834934191).

Almost surely, 2^11230323012 is an apocalyptic number.

11230323012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11230323012 is an abundant number, since it is smaller than the sum of its proper divisors (18827307864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11230323012 is a wasteful number, since it uses less digits than its factorization.

11230323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18350228 (or 18350223 counting only the distinct ones).

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

Adding to 11230323012 its reverse (21032303211), we get a palindrome (32262626223).

The spelling of 11230323012 in words is "eleven billion, two hundred thirty million, three hundred twenty-three thousand, twelve".