242511403421 has 16 divisors (see below), whose sum is σ = 282665548800. Its totient is φ = 203742459648.

The previous prime is 242511403391. The next prime is 242511403429. The reversal of 242511403421 is 124304115242.

It is a happy number.

It is not a de Polignac number, because 242511403421 - 2¹⁴ = 242511387037 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 (242511403429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50420 + ... + 698258.

It is an arithmetic number, because the mean of its divisors is an integer number (17666596800).

Almost surely, 2^242511403421 is an apocalyptic number.

It is an amenable number.

242511403421 is a deficient number, since it is larger than the sum of its proper divisors (40154145379).

242511403421 is a wasteful number, since it uses less digits than its factorization.

242511403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648908.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 242511403421 its reverse (124304115242), we get a palindrome (366815518663).

The spelling of 242511403421 in words is "two hundred forty-two billion, five hundred eleven million, four hundred three thousand, four hundred twenty-one".