11321232012 has 36 divisors (see below), whose sum is σ = 29020629456. Its totient is φ = 3720591840.

The previous prime is 11321231963. The next prime is 11321232031. The reversal of 11321232012 is 21023212311.

11321232012 is a `hidden beast` number, since 11 + 321 + 2 + 320 + 12 = 666.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2212083 + ... + 2217194.

It is an arithmetic number, because the mean of its divisors is an integer number (806128596).

Almost surely, 2^11321232012 is an apocalyptic number.

11321232012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11321232012 is an abundant number, since it is smaller than the sum of its proper divisors (17699397444).

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

11321232012 is a wasteful number, since it uses less digits than its factorization.

11321232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429358 (or 4429353 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11321232012 its reverse (21023212311), we get a palindrome (32344444323).

The spelling of 11321232012 in words is "eleven billion, three hundred twenty-one million, two hundred thirty-two thousand, twelve".