242120544431 has 8 divisors (see below), whose sum is σ = 254936640000. Its totient is φ = 229311739800.

The previous prime is 242120544409. The next prime is 242120544437. The reversal of 242120544431 is 134445021242.

242120544431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242120544431 - 2¹⁴ = 242120528047 is a prime.

It is a super-2 number, since 2×242120544431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120544437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754495 + ... + 1887456.

It is an arithmetic number, because the mean of its divisors is an integer number (31867080000).

Almost surely, 2^242120544431 is an apocalyptic number.

242120544431 is a deficient number, since it is larger than the sum of its proper divisors (12816095569).

242120544431 is a wasteful number, since it uses less digits than its factorization.

242120544431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645469.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 242120544431 its reverse (134445021242), we get a palindrome (376565565673).

The spelling of 242120544431 in words is "two hundred forty-two billion, one hundred twenty million, five hundred forty-four thousand, four hundred thirty-one".