509020311 has 8 divisors (see below), whose sum is σ = 678801904. Its totient is φ = 339292800.

The previous prime is 509020301. The next prime is 509020333. The reversal of 509020311 is 113020905.

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

It is not a de Polignac number, because 509020311 - 2⁶ = 509020247 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 (509020301) 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, 21135 + ... + 38271.

It is an arithmetic number, because the mean of its divisors is an integer number (84850238).

Almost surely, 2^509020311 is an apocalyptic number.

509020311 is a deficient number, since it is larger than the sum of its proper divisors (169781593).

509020311 is a wasteful number, since it uses less digits than its factorization.

509020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27041.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 509020311 is about 22561.4784754900. The cubic root of 509020311 is about 798.4450582993.

The spelling of 509020311 in words is "five hundred nine million, twenty thousand, three hundred eleven".