243122121004 has 24 divisors (see below), whose sum is σ = 486256832768. Its totient is φ = 104192496720.

The previous prime is 243122120987. The next prime is 243122121017. The reversal of 243122121004 is 400121221342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299217 + ... + 1474519.

Almost surely, 2^243122121004 is an apocalyptic number.

It is an amenable number.

243122121004 is an abundant number, since it is smaller than the sum of its proper divisors (243134711764).

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

243122121004 is a wasteful number, since it uses less digits than its factorization.

243122121004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224845 (or 224843 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 243122121004 its reverse (400121221342), we get a palindrome (643243342346).

The spelling of 243122121004 in words is "two hundred forty-three billion, one hundred twenty-two million, one hundred twenty-one thousand, four".