11121653439372 has 96 divisors (see below), whose sum is σ = 30241765435392. Its totient is φ = 3115138381056.

The previous prime is 11121653439371. The next prime is 11121653439427. The reversal of 11121653439372 is 27393435612111.

It is not an unprimeable number, because it can be changed into a prime (11121653439371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4497373 + ... + 6516875.

It is an arithmetic number, because the mean of its divisors is an integer number (315018389952).

Almost surely, 2^{11121653439372} is an apocalyptic number.

11121653439372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121653439372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15120882717696).

11121653439372 is an abundant number, since it is smaller than the sum of its proper divisors (19120111996020).

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

11121653439372 is a wasteful number, since it uses less digits than its factorization.

11121653439372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020807 (or 2020805 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The spelling of 11121653439372 in words is "eleven trillion, one hundred twenty-one billion, six hundred fifty-three million, four hundred thirty-nine thousand, three hundred seventy-two".