20310330513 has 8 divisors (see below), whose sum is σ = 29542298976. Its totient is φ = 12309291200.

The previous prime is 20310330479. The next prime is 20310330517. The reversal of 20310330513 is 31503301302.

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

It is a cyclic number.

It is not a de Polignac number, because 20310330513 - 2⁶ = 20310330449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20310330513.

It is not an unprimeable number, because it can be changed into a prime (20310330517) 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, 307732248 + ... + 307732313.

It is an arithmetic number, because the mean of its divisors is an integer number (3692787372).

Almost surely, 2^20310330513 is an apocalyptic number.

It is an amenable number.

20310330513 is a deficient number, since it is larger than the sum of its proper divisors (9231968463).

20310330513 is a wasteful number, since it uses less digits than its factorization.

20310330513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615464575.

The product of its (nonzero) digits is 810, while the sum is 21.

Adding to 20310330513 its reverse (31503301302), we get a palindrome (51813631815).

The spelling of 20310330513 in words is "twenty billion, three hundred ten million, three hundred thirty thousand, five hundred thirteen".