1111085021748 has 96 divisors (see below), whose sum is σ = 2889016824960. Its totient is φ = 329993879040.

The previous prime is 1111085021747. The next prime is 1111085021759. The reversal of 1111085021748 is 8471205801111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111085021743) 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, 17643838 + ... + 17706698.

It is an arithmetic number, because the mean of its divisors is an integer number (30093925260).

Almost surely, 2^{1111085021748} 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 1111085021748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444508412480).

1111085021748 is an abundant number, since it is smaller than the sum of its proper divisors (1777931803212).

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

1111085021748 is a wasteful number, since it uses less digits than its factorization.

1111085021748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66817 (or 66815 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 39.

The spelling of 1111085021748 in words is "one trillion, one hundred eleven billion, eighty-five million, twenty-one thousand, seven hundred forty-eight".