120323312100 has 216 divisors, whose sum is σ = 402026352000. Its totient is φ = 30012353280.

The previous prime is 120323312099. The next prime is 120323312101. The reversal of 120323312100 is 1213323021.

120323312100 is a `hidden beast` number, since 1 + 20 + 323 + 312 + 10 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (120323312099) and next prime (120323312101).

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 (120323312101) 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, 1306366 + ... + 1395434.

Almost surely, 2^120323312100 is an apocalyptic number.

120323312100 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 120323312100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201013176000).

120323312100 is an abundant number, since it is smaller than the sum of its proper divisors (281703039900).

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

120323312100 is a wasteful number, since it uses less digits than its factorization.

120323312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89187 (or 89177 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 120323312100 its reverse (1213323021), we get a palindrome (121536635121).

The spelling of 120323312100 in words is "one hundred twenty billion, three hundred twenty-three million, three hundred twelve thousand, one hundred".