242420113 has 4 divisors (see below), whose sum is σ = 261067828. Its totient is φ = 223772400.

The previous prime is 242420083. The next prime is 242420147. The reversal of 242420113 is 311024242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59954049 + 182466064 = 7743^2 + 13508^2 .

It is a cyclic number.

It is not a de Polignac number, because 242420113 - 2¹³ = 242411921 is a prime.

It is a super-2 number, since 2×242420113² = 117535022373865538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242420813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9323838 + ... + 9323863.

It is an arithmetic number, because the mean of its divisors is an integer number (65266957).

Almost surely, 2^242420113 is an apocalyptic number.

It is an amenable number.

242420113 is a deficient number, since it is larger than the sum of its proper divisors (18647715).

242420113 is a wasteful number, since it uses less digits than its factorization.

242420113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18647714.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242420113 is about 15569.8462741287. The cubic root of 242420113 is about 623.5283673554.

Adding to 242420113 its reverse (311024242), we get a palindrome (553444355).

The spelling of 242420113 in words is "two hundred forty-two million, four hundred twenty thousand, one hundred thirteen".