242401404311321 has 4 divisors (see below), whose sum is σ = 242406594632832. Its totient is φ = 242396213989812.

The previous prime is 242401404311309. The next prime is 242401404311357. The reversal of 242401404311321 is 123113404104242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 242401404311321 - 2⁶ = 242401404311257 is a prime.

It is a super-2 number, since 2×242401404311321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242401404311621) 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, 2595090701 + ... + 2595184106.

It is an arithmetic number, because the mean of its divisors is an integer number (60601648658208).

Almost surely, 2^{242401404311321} is an apocalyptic number.

It is an amenable number.

242401404311321 is a deficient number, since it is larger than the sum of its proper divisors (5190321511).

242401404311321 is an equidigital number, since it uses as much as digits as its factorization.

242401404311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190321510.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 242401404311321 its reverse (123113404104242), we get a palindrome (365514808415563).

The spelling of 242401404311321 in words is "two hundred forty-two trillion, four hundred one billion, four hundred four million, three hundred eleven thousand, three hundred twenty-one".