102320423120 has 80 divisors (see below), whose sum is σ = 242010903168. Its totient is φ = 40223715840.

The previous prime is 102320423087. The next prime is 102320423129. The reversal of 102320423120 is 21324023201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102320423092 and 102320423101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102320423129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1772147 + ... + 1828973.

Almost surely, 2^102320423120 is an apocalyptic number.

102320423120 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 102320423120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121005451584).

102320423120 is an abundant number, since it is smaller than the sum of its proper divisors (139690480048).

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

102320423120 is a wasteful number, since it uses less digits than its factorization.

102320423120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57228 (or 57222 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 102320423120 its reverse (21324023201), we get a palindrome (123644446321).

The spelling of 102320423120 in words is "one hundred two billion, three hundred twenty million, four hundred twenty-three thousand, one hundred twenty".