19118301000 has 128 divisors (see below), whose sum is σ = 60660662400. Its totient is φ = 5011756800.

The previous prime is 19118300983. The next prime is 19118301001. The reversal of 19118301000 is 10381191.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (19118301001) 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, 122994 + ... + 231006.

It is an arithmetic number, because the mean of its divisors is an integer number (473911425).

Almost surely, 2^19118301000 is an apocalyptic number.

19118301000 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 19118301000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30330331200).

19118301000 is an abundant number, since it is smaller than the sum of its proper divisors (41542361400).

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

19118301000 is a wasteful number, since it uses less digits than its factorization.

19118301000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108096 (or 108082 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

Adding to 19118301000 its reverse (10381191), we get a palindrome (19128682191).

The spelling of 19118301000 in words is "nineteen billion, one hundred eighteen million, three hundred one thousand".