242033513021 has 4 divisors (see below), whose sum is σ = 246600183132. Its totient is φ = 237466842912.

The previous prime is 242033512979. The next prime is 242033513023. The reversal of 242033513021 is 120315330242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120315330242 = 2 ⋅60157665121.

It can be written as a sum of positive squares in 2 ways, for example, as 62777808025 + 179255704996 = 250555^2 + 423386^2 .

It is a cyclic number.

It is not a de Polignac number, because 242033513021 - 2²² = 242029318717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242033513023) 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, 2283334976 + ... + 2283335081.

It is an arithmetic number, because the mean of its divisors is an integer number (61650045783).

Almost surely, 2^242033513021 is an apocalyptic number.

It is an amenable number.

242033513021 is a deficient number, since it is larger than the sum of its proper divisors (4566670111).

242033513021 is an equidigital number, since it uses as much as digits as its factorization.

242033513021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566670110.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 242033513021 its reverse (120315330242), we get a palindrome (362348843263).

The spelling of 242033513021 in words is "two hundred forty-two billion, thirty-three million, five hundred thirteen thousand, twenty-one".