1111013771680 has 48 divisors (see below), whose sum is σ = 2634527647080. Its totient is φ = 442753426432.

The previous prime is 1111013771671. The next prime is 1111013771683. The reversal of 1111013771680 is 861773101111.

It can be written as a sum of positive squares in 4 ways, for example, as 217935850896 + 893077920784 = 466836^2 + 945028^2 .

It is not an unprimeable number, because it can be changed into a prime (1111013771683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12863719 + ... + 12949798.

Almost surely, 2^{1111013771680} is an apocalyptic number.

1111013771680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111013771680 is an abundant number, since it is smaller than the sum of its proper divisors (1523513875400).

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

1111013771680 is a wasteful number, since it uses less digits than its factorization.

1111013771680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25813801 (or 25813793 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 37.

Adding to 1111013771680 its reverse (861773101111), we get a palindrome (1972786872791).

The spelling of 1111013771680 in words is "one trillion, one hundred eleven billion, thirteen million, seven hundred seventy-one thousand, six hundred eighty".