800513311 has 4 divisors (see below), whose sum is σ = 862091272. Its totient is φ = 738935352.

The previous prime is 800513299. The next prime is 800513347. The reversal of 800513311 is 113315008.

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 800513311 - 2⁹ = 800512799 is a prime.

It is a super-2 number, since 2×800513311² = 1281643122176365442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800513381) 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, 30788961 + ... + 30788986.

It is an arithmetic number, because the mean of its divisors is an integer number (215522818).

Almost surely, 2^800513311 is an apocalyptic number.

800513311 is a deficient number, since it is larger than the sum of its proper divisors (61577961).

800513311 is a wasteful number, since it uses less digits than its factorization.

800513311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61577960.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 800513311 is about 28293.3439345723. The cubic root of 800513311 is about 928.5162724894.

Adding to 800513311 its reverse (113315008), we get a palindrome (913828319).

It can be divided in two parts, 8005 and 13311, that added together give a square (21316 = 146²).

The spelling of 800513311 in words is "eight hundred million, five hundred thirteen thousand, three hundred eleven".