11031021112 has 8 divisors (see below), whose sum is σ = 20683164600. Its totient is φ = 5515510552.

The previous prime is 11031021109. The next prime is 11031021139. The reversal of 11031021112 is 21112013011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11031021092 and 11031021101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689438812 + ... + 689438827.

It is an arithmetic number, because the mean of its divisors is an integer number (2585395575).

Almost surely, 2^11031021112 is an apocalyptic number.

It is an amenable number.

11031021112 is a deficient number, since it is larger than the sum of its proper divisors (9652143488).

11031021112 is a wasteful number, since it uses less digits than its factorization.

11031021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378877645 (or 1378877641 counting only the distinct ones).

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

Adding to 11031021112 its reverse (21112013011), we get a palindrome (32143034123).

The spelling of 11031021112 in words is "eleven billion, thirty-one million, twenty-one thousand, one hundred twelve".