11101312012 has 36 divisors (see below), whose sum is σ = 22608648720. Its totient is φ = 4755694944.

The previous prime is 11101311989. The next prime is 11101312031. The reversal of 11101312012 is 21021310111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11101311983 and 11101312001.

It is an unprimeable number.

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, 511314 + ... + 532582.

It is an arithmetic number, because the mean of its divisors is an integer number (628018020).

Almost surely, 2^11101312012 is an apocalyptic number.

It is an amenable number.

11101312012 is an abundant number, since it is smaller than the sum of its proper divisors (11507336708).

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

11101312012 is a wasteful number, since it uses less digits than its factorization.

11101312012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23950 (or 23941 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11101312012 its reverse (21021310111), we get a palindrome (32122622123).

The spelling of 11101312012 in words is "eleven billion, one hundred one million, three hundred twelve thousand, twelve".