243121404234 has 8 divisors (see below), whose sum is σ = 486242808480. Its totient is φ = 81040468076.

The previous prime is 243121404223. The next prime is 243121404259. The reversal of 243121404234 is 432404121342.

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

243121404234 is an admirable number.

It is a super-3 number, since 3×243121404234³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20260117014 + ... + 20260117025.

It is an arithmetic number, because the mean of its divisors is an integer number (60780351060).

Almost surely, 2^243121404234 is an apocalyptic number.

243121404234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243121404234 is a wasteful number, since it uses less digits than its factorization.

243121404234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40520234044.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 243121404234 its reverse (432404121342), we get a palindrome (675525525576).

The spelling of 243121404234 in words is "two hundred forty-three billion, one hundred twenty-one million, four hundred four thousand, two hundred thirty-four".