13211142012 has 48 divisors (see below), whose sum is σ = 34261758720. Its totient is φ = 4402344816.

The previous prime is 13211142011. The next prime is 13211142029. The reversal of 13211142012 is 21024111231.

13211142012 is a `hidden beast` number, since 132 + 111 + 420 + 1 + 2 = 666.

13211142012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13211142012² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13211142011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365833 + ... + 400319.

It is an arithmetic number, because the mean of its divisors is an integer number (713786640).

Almost surely, 2^13211142012 is an apocalyptic number.

13211142012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13211142012 is an abundant number, since it is smaller than the sum of its proper divisors (21050616708).

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

13211142012 is a wasteful number, since it uses less digits than its factorization.

13211142012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38047 (or 38039 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13211142012 its reverse (21024111231), we get a palindrome (34235253243).

The spelling of 13211142012 in words is "thirteen billion, two hundred eleven million, one hundred forty-two thousand, twelve".