1121005436056 has 128 divisors (see below), whose sum is σ = 2430885038400. Its totient is φ = 483903974400.

The previous prime is 1121005436017. The next prime is 1121005436087. The reversal of 1121005436056 is 6506345001211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18806556 + ... + 18866068.

Almost surely, 2^{1121005436056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121005436056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1215442519200).

1121005436056 is an abundant number, since it is smaller than the sum of its proper divisors (1309879602344).

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

1121005436056 is a wasteful number, since it uses less digits than its factorization.

1121005436056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59642 (or 59616 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 1121005436056 in words is "one trillion, one hundred twenty-one billion, five million, four hundred thirty-six thousand, fifty-six".