242123033 has 4 divisors (see below), whose sum is σ = 242174820. Its totient is φ = 242071248.

The previous prime is 242123029. The next prime is 242123039. The reversal of 242123033 is 330321242.

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 54213769 + 187909264 = 7363^2 + 13708^2 .

It is a cyclic number.

It is not a de Polignac number, because 242123033 - 2² = 242123029 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 242122996 and 242123014.

It is not an unprimeable number, because it can be changed into a prime (242123039) 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, 18098 + ... + 28491.

It is an arithmetic number, because the mean of its divisors is an integer number (60543705).

Almost surely, 2^242123033 is an apocalyptic number.

It is an amenable number.

242123033 is a deficient number, since it is larger than the sum of its proper divisors (51787).

242123033 is an equidigital number, since it uses as much as digits as its factorization.

242123033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51786.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 242123033 is about 15560.3031140142. The cubic root of 242123033 is about 623.2735569153.

Adding to 242123033 its reverse (330321242), we get a palindrome (572444275).

The spelling of 242123033 in words is "two hundred forty-two million, one hundred twenty-three thousand, thirty-three".