113042242 has 4 divisors (see below), whose sum is σ = 169563366. Its totient is φ = 56521120.

The previous prime is 113042219. The next prime is 113042243. The reversal of 113042242 is 242240311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242240311 = 977 ⋅247943.

It can be written as a sum of positive squares in only one way, i.e., 96059601 + 16982641 = 9801^2 + 4121^2 .

It is a super-3 number, since 3×113042242³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (113042243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28260559 + ... + 28260562.

Almost surely, 2^113042242 is an apocalyptic number.

113042242 is a deficient number, since it is larger than the sum of its proper divisors (56521124).

113042242 is an equidigital number, since it uses as much as digits as its factorization.

113042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56521123.

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

The square root of 113042242 is about 10632.1325236286. The cubic root of 113042242 is about 483.5190478820.

Adding to 113042242 its reverse (242240311), we get a palindrome (355282553).

The spelling of 113042242 in words is "one hundred thirteen million, forty-two thousand, two hundred forty-two".