111450020000 has 120 divisors (see below), whose sum is σ = 299110154112. Its totient is φ = 40527200000.

The previous prime is 111450019991. The next prime is 111450020009. The reversal of 111450020000 is 20054111.

It is an interprime number because it is at equal distance from previous prime (111450019991) and next prime (111450020009).

It is a super-2 number, since 2×111450020000² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111450020009) 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 19 ways as a sum of consecutive naturals, for example, 33296 + ... + 473295.

Almost surely, 2^111450020000 is an apocalyptic number.

111450020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111450020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149555077056).

111450020000 is an abundant number, since it is smaller than the sum of its proper divisors (187660134112).

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

111450020000 is an equidigital number, since it uses as much as digits as its factorization.

111450020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506632 (or 506609 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 111450020000 its reverse (20054111), we get a palindrome (111470074111).

The spelling of 111450020000 in words is "one hundred eleven billion, four hundred fifty million, twenty thousand".