243121244070 has 32 divisors (see below), whose sum is σ = 584433665280. Its totient is φ = 64727589600.

The previous prime is 243121243997. The next prime is 243121244071. The reversal of 243121244070 is 70442121342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243121244071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6527506 + ... + 6564645.

It is an arithmetic number, because the mean of its divisors is an integer number (18263552040).

Almost surely, 2^243121244070 is an apocalyptic number.

243121244070 is an abundant number, since it is smaller than the sum of its proper divisors (341312421210).

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

243121244070 is a wasteful number, since it uses less digits than its factorization.

243121244070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13092780.

The product of its (nonzero) digits is 10752, while the sum is 30.

The spelling of 243121244070 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-four thousand, seventy".