120340322100 has 108 divisors (see below), whose sum is σ = 378892166016. Its totient is φ = 31946794560.

The previous prime is 120340322093. The next prime is 120340322101. The reversal of 120340322100 is 1223043021.

120340322100 is a `hidden beast` number, since 1 + 2 + 0 + 340 + 322 + 1 + 0 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120340322101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 99102 + ... + 500501.

Almost surely, 2^120340322100 is an apocalyptic number.

120340322100 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 120340322100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189446083008).

120340322100 is an abundant number, since it is smaller than the sum of its proper divisors (258551843916).

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

120340322100 is a wasteful number, since it uses less digits than its factorization.

120340322100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599846 (or 599836 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 120340322100 its reverse (1223043021), we get a palindrome (121563365121).

The spelling of 120340322100 in words is "one hundred twenty billion, three hundred forty million, three hundred twenty-two thousand, one hundred".