111036121660 has 12 divisors (see below), whose sum is σ = 233175855528. Its totient is φ = 44414448656.

The previous prime is 111036121597. The next prime is 111036121661. The reversal of 111036121660 is 66121630111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111036121661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775903022 + ... + 2775903061.

It is an arithmetic number, because the mean of its divisors is an integer number (19431321294).

Almost surely, 2^111036121660 is an apocalyptic number.

111036121660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111036121660 is an abundant number, since it is smaller than the sum of its proper divisors (122139733868).

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

111036121660 is a wasteful number, since it uses less digits than its factorization.

111036121660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551806092 (or 5551806090 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

Adding to 111036121660 its reverse (66121630111), we get a palindrome (177157751771).

The spelling of 111036121660 in words is "one hundred eleven billion, thirty-six million, one hundred twenty-one thousand, six hundred sixty".