20230013 has 4 divisors (see below), whose sum is σ = 20319360. Its totient is φ = 20140668.

The previous prime is 20229991. The next prime is 20230031. The reversal of 20230013 is 31003202.

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 20230013 - 2⁸ = 20229757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20229976 and 20230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232013) 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, 44333 + ... + 44786.

It is an arithmetic number, because the mean of its divisors is an integer number (5079840).

Almost surely, 2^20230013 is an apocalyptic number.

It is an amenable number.

20230013 is a deficient number, since it is larger than the sum of its proper divisors (89347).

20230013 is an equidigital number, since it uses as much as digits as its factorization.

20230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89346.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20230013 is about 4497.7786739679. The cubic root of 20230013 is about 272.4783833819.

Adding to 20230013 its reverse (31003202), we get a palindrome (51233215).

The spelling of 20230013 in words is "twenty million, two hundred thirty thousand, thirteen".