11120021312 has 28 divisors (see below), whose sum is σ = 22604499876. Its totient is φ = 5424399360.

The previous prime is 11120021299. The next prime is 11120021323. The reversal of 11120021312 is 21312002111.

It can be written as a sum of positive squares in 2 ways, for example, as 4306509376 + 6813511936 = 65624^2 + 82544^2 .

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, 2116283 + ... + 2121530.

It is an arithmetic number, because the mean of its divisors is an integer number (807303567).

Almost surely, 2^11120021312 is an apocalyptic number.

It is an amenable number.

11120021312 is an abundant number, since it is smaller than the sum of its proper divisors (11484478564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11120021312 is an equidigital number, since it uses as much as digits as its factorization.

11120021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237866 (or 4237856 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11120021312 its reverse (21312002111), we get a palindrome (32432023423).

The spelling of 11120021312 in words is "eleven billion, one hundred twenty million, twenty-one thousand, three hundred twelve".