383801311 has 16 divisors (see below), whose sum is σ = 409305600. Its totient is φ = 358862400.

The previous prime is 383801309. The next prime is 383801329. The reversal of 383801311 is 113108383.

It is a cyclic number.

It is not a de Polignac number, because 383801311 - 2¹ = 383801309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 383801311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383801351) 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, 674235 + ... + 674803.

It is an arithmetic number, because the mean of its divisors is an integer number (25581600).

Almost surely, 2^383801311 is an apocalyptic number.

383801311 is a deficient number, since it is larger than the sum of its proper divisors (25504289).

383801311 is a wasteful number, since it uses less digits than its factorization.

383801311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 383801311 is about 19590.8476335252. The cubic root of 383801311 is about 726.7228537435.

Adding to 383801311 its reverse (113108383), we get a palindrome (496909694).

The spelling of 383801311 in words is "three hundred eighty-three million, eight hundred one thousand, three hundred eleven".