243121245308 has 48 divisors (see below), whose sum is σ = 452153560320. Its totient is φ = 113988152064.

The previous prime is 243121245287. The next prime is 243121245331. The reversal of 243121245308 is 803542121342.

It is a super-2 number, since 2×243121245308² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21166535 + ... + 21178017.

It is an arithmetic number, because the mean of its divisors is an integer number (9419865840).

Almost surely, 2^243121245308 is an apocalyptic number.

It is an amenable number.

243121245308 is a deficient number, since it is larger than the sum of its proper divisors (209032315012).

243121245308 is a wasteful number, since it uses less digits than its factorization.

243121245308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626 (or 12624 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 243121245308 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-five thousand, three hundred eight".