4121120243 has 4 divisors (see below), whose sum is σ = 4300299408. Its totient is φ = 3941941080.

The previous prime is 4121120239. The next prime is 4121120257. The reversal of 4121120243 is 3420211214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4121120243 - 2² = 4121120239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121120543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89589548 + ... + 89589593.

It is an arithmetic number, because the mean of its divisors is an integer number (1075074852).

Almost surely, 2^4121120243 is an apocalyptic number.

4121120243 is a deficient number, since it is larger than the sum of its proper divisors (179179165).

4121120243 is a wasteful number, since it uses less digits than its factorization.

4121120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179179164.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4121120243 is about 64195.9519206624. The cubic root of 4121120243 is about 1603.2642010649.

Adding to 4121120243 its reverse (3420211214), we get a palindrome (7541331457).

The spelling of 4121120243 in words is "four billion, one hundred twenty-one million, one hundred twenty thousand, two hundred forty-three".