383813121318383 has 4 divisors (see below), whose sum is σ = 383814220339008. Its totient is φ = 383812022297760.

The previous prime is 383813121318373. The next prime is 383813121318397.

383813121318383 is nontrivially palindromic in base 10.

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 383813121318383 - 2¹⁴ = 383813121301999 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 (383813121318323) 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, 548986298 + ... + 549684983.

It is an arithmetic number, because the mean of its divisors is an integer number (95953555084752).

Almost surely, 2^{383813121318383} is an apocalyptic number.

383813121318383 is a deficient number, since it is larger than the sum of its proper divisors (1099020625).

383813121318383 is a wasteful number, since it uses less digits than its factorization.

383813121318383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099020624.

The product of its digits is 5971968, while the sum is 56.

The spelling of 383813121318383 in words is "three hundred eighty-three trillion, eight hundred thirteen billion, one hundred twenty-one million, three hundred eighteen thousand, three hundred eighty-three".