20020508319 has 32 divisors (see below), whose sum is σ = 31961645056. Its totient is φ = 10905982560.

The previous prime is 20020508273. The next prime is 20020508327. The reversal of 20020508319 is 91380502002.

It is a happy number.

It is not a de Polignac number, because 20020508319 - 2⁷ = 20020508191 is a prime.

It is a super-2 number, since 2×20020508319² (a number of 21 digits) 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 (20020508359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185887 + ... + 273120.

It is an arithmetic number, because the mean of its divisors is an integer number (998801408).

Almost surely, 2^20020508319 is an apocalyptic number.

20020508319 is a deficient number, since it is larger than the sum of its proper divisors (11941136737).

20020508319 is a wasteful number, since it uses less digits than its factorization.

20020508319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459115.

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 20020508319 in words is "twenty billion, twenty million, five hundred eight thousand, three hundred nineteen".