20310310523 has 8 divisors (see below), whose sum is σ = 20385769248. Its totient is φ = 20234919744.

The previous prime is 20310310513. The next prime is 20310310577. The reversal of 20310310523 is 32501301302.

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 20310310523 - 2¹⁰ = 20310309499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310310495 and 20310310504.

It is not an unprimeable number, because it can be changed into a prime (20310310513) 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, 626786 + ... + 658392.

It is an arithmetic number, because the mean of its divisors is an integer number (2548221156).

Almost surely, 2^20310310523 is an apocalyptic number.

20310310523 is a deficient number, since it is larger than the sum of its proper divisors (75458725).

20310310523 is a wasteful number, since it uses less digits than its factorization.

20310310523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33973.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 20310310523 its reverse (32501301302), we get a palindrome (52811611825).

The spelling of 20310310523 in words is "twenty billion, three hundred ten million, three hundred ten thousand, five hundred twenty-three".