11101213312 has 32 divisors (see below), whose sum is σ = 25275085920. Its totient is φ = 4757662464.

The previous prime is 11101213297. The next prime is 11101213313. The reversal of 11101213312 is 21331210111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (11101213313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6193978 + ... + 6195769.

It is an arithmetic number, because the mean of its divisors is an integer number (789846435).

Almost surely, 2^11101213312 is an apocalyptic number.

It is an amenable number.

11101213312 is an abundant number, since it is smaller than the sum of its proper divisors (14173872608).

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

11101213312 is an equidigital number, since it uses as much as digits as its factorization.

11101213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12389768 (or 12389756 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11101213312 its reverse (21331210111), we get a palindrome (32432423423).

The spelling of 11101213312 in words is "eleven billion, one hundred one million, two hundred thirteen thousand, three hundred twelve".