243121245353 has 8 divisors (see below), whose sum is σ = 285362388672. Its totient is φ = 202757486256.

The previous prime is 243121245347. The next prime is 243121245397. The reversal of 243121245353 is 353542121342.

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 243121245353 - 2⁸ = 243121245097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243121215353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469345775 + ... + 469346292.

It is an arithmetic number, because the mean of its divisors is an integer number (35670298584).

Almost surely, 2^243121245353 is an apocalyptic number.

It is an amenable number.

243121245353 is a deficient number, since it is larger than the sum of its proper divisors (42241143319).

243121245353 is an equidigital number, since it uses as much as digits as its factorization.

243121245353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938692111.

The product of its digits is 86400, while the sum is 35.

Adding to 243121245353 its reverse (353542121342), we get a palindrome (596663366695).

The spelling of 243121245353 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand, three hundred fifty-three".