111012555040 has 24 divisors (see below), whose sum is σ = 262267161660. Its totient is φ = 44405021952.

The previous prime is 111012555037. The next prime is 111012555103. The reversal of 111012555040 is 40555210111.

It can be written as a sum of positive squares in 2 ways, for example, as 102428161936 + 8584393104 = 320044^2 + 92652^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111012554996 and 111012555014.

It is an unprimeable number.

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, 346914075 + ... + 346914394.

Almost surely, 2^111012555040 is an apocalyptic number.

111012555040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012555040 is an abundant number, since it is smaller than the sum of its proper divisors (151254606620).

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

111012555040 is an equidigital number, since it uses as much as digits as its factorization.

111012555040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693828484 (or 693828476 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

Adding to 111012555040 its reverse (40555210111), we get a palindrome (151567765151).

The spelling of 111012555040 in words is "one hundred eleven billion, twelve million, five hundred fifty-five thousand, forty".