11311323512 has 8 divisors (see below), whose sum is σ = 21208731600. Its totient is φ = 5655661752.

The previous prime is 11311323497. The next prime is 11311323559. The reversal of 11311323512 is 21532311311.

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

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, 706957712 + ... + 706957727.

It is an arithmetic number, because the mean of its divisors is an integer number (2651091450).

Almost surely, 2^11311323512 is an apocalyptic number.

It is an amenable number.

11311323512 is a deficient number, since it is larger than the sum of its proper divisors (9897408088).

11311323512 is a wasteful number, since it uses less digits than its factorization.

11311323512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413915445 (or 1413915441 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

Adding to 11311323512 its reverse (21532311311), we get a palindrome (32843634823).

The spelling of 11311323512 in words is "eleven billion, three hundred eleven million, three hundred twenty-three thousand, five hundred twelve".