243421151051 has 16 divisors (see below), whose sum is σ = 277957226400. Its totient is φ = 211316491008.

The previous prime is 243421151041. The next prime is 243421151087. The reversal of 243421151051 is 150151124342.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243421151051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243421151011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3562916 + ... + 3630593.

It is an arithmetic number, because the mean of its divisors is an integer number (17372326650).

Almost surely, 2^243421151051 is an apocalyptic number.

243421151051 is a deficient number, since it is larger than the sum of its proper divisors (34536075349).

243421151051 is a wasteful number, since it uses less digits than its factorization.

243421151051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7193678.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 243421151051 its reverse (150151124342), we get a palindrome (393572275393).

The spelling of 243421151051 in words is "two hundred forty-three billion, four hundred twenty-one million, one hundred fifty-one thousand, fifty-one".