100020320323120 has 40 divisors (see below), whose sum is σ = 232559948023200. Its totient is φ = 40005942620160.

The previous prime is 100020320323093. The next prime is 100020320323127. The reversal of 100020320323120 is 21323023020001.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (100020320323127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32674545 + ... + 35604304.

It is an arithmetic number, because the mean of its divisors is an integer number (5813998700580).

Almost surely, 2^{100020320323120} is an apocalyptic number.

100020320323120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020320323120 is an abundant number, since it is smaller than the sum of its proper divisors (132539627700080).

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

100020320323120 is a wasteful number, since it uses less digits than its factorization.

100020320323120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68297173 (or 68297167 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100020320323120 its reverse (21323023020001), we get a palindrome (121343343343121).

The spelling of 100020320323120 in words is "one hundred trillion, twenty billion, three hundred twenty million, three hundred twenty-three thousand, one hundred twenty".