242423321220 has 36 divisors (see below), whose sum is σ = 735350741580. Its totient is φ = 64646218944.

The previous prime is 242423321213. The next prime is 242423321267. The reversal of 242423321220 is 22123324242.

242423321220 is a `hidden beast` number, since 2 + 4 + 2 + 423 + 3 + 212 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47984654916 + 194438666304 = 219054^2 + 440952^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673397935 + ... + 673398294.

Almost surely, 2^242423321220 is an apocalyptic number.

242423321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242423321220 is an abundant number, since it is smaller than the sum of its proper divisors (492927420360).

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

242423321220 is a wasteful number, since it uses less digits than its factorization.

242423321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346796244 (or 1346796239 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 242423321220 its reverse (22123324242), we get a palindrome (264546645462).

The spelling of 242423321220 in words is "two hundred forty-two billion, four hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty".