2381212243 has 8 divisors (see below), whose sum is σ = 2463991200. Its totient is φ = 2298477888.

The previous prime is 2381212217. The next prime is 2381212313. The reversal of 2381212243 is 3422121832.

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

It is a cyclic number.

It is not a de Polignac number, because 2381212243 - 2²⁵ = 2347657811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381212543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126423 + ... + 144031.

It is an arithmetic number, because the mean of its divisors is an integer number (307998900).

Almost surely, 2^2381212243 is an apocalyptic number.

2381212243 is a deficient number, since it is larger than the sum of its proper divisors (82778957).

2381212243 is a wasteful number, since it uses less digits than its factorization.

2381212243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22301.

The product of its digits is 4608, while the sum is 28.

The square root of 2381212243 is about 48797.6663683828. Note that the first 3 decimals coincide. The cubic root of 2381212243 is about 1335.3630929404.

The spelling of 2381212243 in words is "two billion, three hundred eighty-one million, two hundred twelve thousand, two hundred forty-three".