243102023120 has 80 divisors (see below), whose sum is σ = 616995634752. Its totient is φ = 88343316480.

The previous prime is 243102023111. The next prime is 243102023161. The reversal of 243102023120 is 21320201342.

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 = 243102023092 and 243102023101.

It is a congruent number.

It is an unprimeable number.

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, 1277699 + ... + 1455581.

Almost surely, 2^243102023120 is an apocalyptic number.

243102023120 is a gapful number since it is divisible by the number (20) 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 243102023120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308497817376).

243102023120 is an abundant number, since it is smaller than the sum of its proper divisors (373893611632).

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

243102023120 is a wasteful number, since it uses less digits than its factorization.

243102023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179460 (or 179454 counting only the distinct ones).

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

Adding to 243102023120 its reverse (21320201342), we get a palindrome (264422224462).

The spelling of 243102023120 in words is "two hundred forty-three billion, one hundred two million, twenty-three thousand, one hundred twenty".