11311023112 has 8 divisors (see below), whose sum is σ = 21208168350. Its totient is φ = 5655511552.

The previous prime is 11311023089. The next prime is 11311023161. The reversal of 11311023112 is 21132011311.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9437345316 + 1873677796 = 97146^2 + 43286^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706938937 + ... + 706938952.

Almost surely, 2^11311023112 is an apocalyptic number.

It is an amenable number.

11311023112 is a deficient number, since it is larger than the sum of its proper divisors (9897145238).

11311023112 is a wasteful number, since it uses less digits than its factorization.

11311023112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413877895 (or 1413877891 counting only the distinct ones).

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

Adding to 11311023112 its reverse (21132011311), we get a palindrome (32443034423).

The spelling of 11311023112 in words is "eleven billion, three hundred eleven million, twenty-three thousand, one hundred twelve".