11101320012 has 24 divisors (see below), whose sum is σ = 26603164336. Its totient is φ = 3600427968.

The previous prime is 11101320011. The next prime is 11101320017. The reversal of 11101320012 is 21002310111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11101320012.

It is not an unprimeable number, because it can be changed into a prime (11101320011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12501043 + ... + 12501930.

Almost surely, 2^11101320012 is an apocalyptic number.

11101320012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11101320012 is an abundant number, since it is smaller than the sum of its proper divisors (15501844324).

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

11101320012 is a wasteful number, since it uses less digits than its factorization.

11101320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25003017 (or 25003015 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11101320012 its reverse (21002310111), we get a palindrome (32103630123).

Subtracting 11101320012 from its reverse (21002310111), we obtain a palindrome (9900990099).

The spelling of 11101320012 in words is "eleven billion, one hundred one million, three hundred twenty thousand, twelve".