242606323021 has 4 divisors (see below), whose sum is σ = 242680905532. Its totient is φ = 242531740512.

The previous prime is 242606322983. The next prime is 242606323039. The reversal of 242606323021 is 120323606242.

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 206310357796 + 36295965225 = 454214^2 + 190515^2 .

It is a cyclic number.

It is not a de Polignac number, because 242606323021 - 2¹³ = 242606314829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242606323121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37286376 + ... + 37292881.

It is an arithmetic number, because the mean of its divisors is an integer number (60670226383).

Almost surely, 2^242606323021 is an apocalyptic number.

It is an amenable number.

242606323021 is a deficient number, since it is larger than the sum of its proper divisors (74582511).

242606323021 is an equidigital number, since it uses as much as digits as its factorization.

242606323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74582510.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 242606323021 its reverse (120323606242), we get a palindrome (362929929263).

The spelling of 242606323021 in words is "two hundred forty-two billion, six hundred six million, three hundred twenty-three thousand, twenty-one".