120000100000 has 432 divisors, whose sum is σ = 335394470880. Its totient is φ = 41899200000.

The previous prime is 120000099899. The next prime is 120000100009. The reversal of 120000100000 is 1000021.

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (120000100009) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2033899971 + ... + 2033900029.

It is an arithmetic number, because the mean of its divisors is an integer number (776376090).

Almost surely, 2^120000100000 is an apocalyptic number.

120000100000 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 120000100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167697235440).

120000100000 is an abundant number, since it is smaller than the sum of its proper divisors (215394370880).

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

120000100000 is an frugal number, since it uses more digits than its factorization.

120000100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

Adding to 120000100000 its reverse (1000021), we get a palindrome (120001100021).

The spelling of 120000100000 in words is "one hundred twenty billion, one hundred thousand".