19000111111002 has 64 divisors (see below), whose sum is σ = 48298643619840. Its totient is φ = 5423608942128.

The previous prime is 19000111111001. The next prime is 19000111111013. The reversal of 19000111111002 is 20011111100091.

It is a super-2 number, since 2×19000111111002² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (19000111111001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22710018 + ... + 23531789.

It is an arithmetic number, because the mean of its divisors is an integer number (754666306560).

Almost surely, 2^{19000111111002} is an apocalyptic number.

19000111111002 is an abundant number, since it is smaller than the sum of its proper divisors (29298532508838).

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

19000111111002 is a wasteful number, since it uses less digits than its factorization.

19000111111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46242912 (or 46242906 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

Adding to 19000111111002 its reverse (20011111100091), we get a palindrome (39011222211093).

The spelling of 19000111111002 in words is "nineteen trillion, one hundred eleven million, one hundred eleven thousand, two".