11121013012 has 48 divisors (see below), whose sum is σ = 20916790272. Its totient is φ = 5154831360.

The previous prime is 11121012989. The next prime is 11121013019. The reversal of 11121013012 is 21031012111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11121012983 and 11121013001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121013019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7301283 + ... + 7302805.

It is an arithmetic number, because the mean of its divisors is an integer number (435766464).

Almost surely, 2^11121013012 is an apocalyptic number.

It is an amenable number.

11121013012 is a deficient number, since it is larger than the sum of its proper divisors (9795777260).

11121013012 is a wasteful number, since it uses less digits than its factorization.

11121013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088 (or 3086 counting only the distinct ones).

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

Adding to 11121013012 its reverse (21031012111), we get a palindrome (32152025123).

Subtracting 11121013012 from its reverse (21031012111), we obtain a palindrome (9909999099).

The spelling of 11121013012 in words is "eleven billion, one hundred twenty-one million, thirteen thousand, twelve".