11320121312 has 24 divisors (see below), whose sum is σ = 22289999256. Its totient is φ = 5659169152.

The previous prime is 11320121291. The next prime is 11320121357. The reversal of 11320121312 is 21312102311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209618 + ... + 258030.

It is an arithmetic number, because the mean of its divisors is an integer number (928749969).

Almost surely, 2^11320121312 is an apocalyptic number.

It is an amenable number.

11320121312 is a deficient number, since it is larger than the sum of its proper divisors (10969877944).

11320121312 is an equidigital number, since it uses as much as digits as its factorization.

11320121312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55730 (or 55722 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11320121312 its reverse (21312102311), we get a palindrome (32632223623).

The spelling of 11320121312 in words is "eleven billion, three hundred twenty million, one hundred twenty-one thousand, three hundred twelve".