111252445000 has 40 divisors (see below), whose sum is σ = 260664490350. Its totient is φ = 44500976000.

The previous prime is 111252444991. The next prime is 111252445001. The reversal of 111252445000 is 544252111.

It can be written as a sum of positive squares in 5 ways, for example, as 25324903044 + 85927541956 = 159138^2 + 293134^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (111252445001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11120245 + ... + 11130244.

Almost surely, 2^111252445000 is an apocalyptic number.

111252445000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111252445000 is an abundant number, since it is smaller than the sum of its proper divisors (149412045350).

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

111252445000 is an equidigital number, since it uses as much as digits as its factorization.

111252445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22250515 (or 22250496 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 111252445000 its reverse (544252111), we get a palindrome (111796697111).

The spelling of 111252445000 in words is "one hundred eleven billion, two hundred fifty-two million, four hundred forty-five thousand".