20310230013 has 4 divisors (see below), whose sum is σ = 27080306688. Its totient is φ = 13540153340.

The previous prime is 20310230009. The next prime is 20310230023. The reversal of 20310230013 is 31003201302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20310230013 - 2² = 20310230009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20310229974 and 20310230001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310230023) 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, 3385038333 + ... + 3385038338.

It is an arithmetic number, because the mean of its divisors is an integer number (6770076672).

Almost surely, 2^20310230013 is an apocalyptic number.

It is an amenable number.

20310230013 is a deficient number, since it is larger than the sum of its proper divisors (6770076675).

20310230013 is an equidigital number, since it uses as much as digits as its factorization.

20310230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770076674.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20310230013 its reverse (31003201302), we get a palindrome (51313431315).

The spelling of 20310230013 in words is "twenty billion, three hundred ten million, two hundred thirty thousand, thirteen".