2117240383 has 4 divisors (see below), whose sum is σ = 2131450200. Its totient is φ = 2103030568.

The previous prime is 2117240371. The next prime is 2117240453. The reversal of 2117240383 is 3830427112.

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 2117240383 - 2²⁵ = 2083685951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117240483) 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, 7104685 + ... + 7104982.

It is an arithmetic number, because the mean of its divisors is an integer number (532862550).

Almost surely, 2^2117240383 is an apocalyptic number.

2117240383 is a deficient number, since it is larger than the sum of its proper divisors (14209817).

2117240383 is a wasteful number, since it uses less digits than its factorization.

2117240383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14209816.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2117240383 is about 46013.4804486685. The cubic root of 2117240383 is about 1284.0740113764.

Adding to 2117240383 its reverse (3830427112), we get a palindrome (5947667495).

The spelling of 2117240383 in words is "two billion, one hundred seventeen million, two hundred forty thousand, three hundred eighty-three".