20203040330213 has 4 divisors (see below), whose sum is σ = 21757120355628. Its totient is φ = 18648960304800.

The previous prime is 20203040330129. The next prime is 20203040330267. The reversal of 20203040330213 is 31203304030202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5996043537124 + 14206996793089 = 2448682^2 + 3769217^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203040330213 - 2³⁴ = 20185860461029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203040330273) 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, 777040012688 + ... + 777040012713.

It is an arithmetic number, because the mean of its divisors is an integer number (5439280088907).

Almost surely, 2^{20203040330213} is an apocalyptic number.

It is an amenable number.

20203040330213 is a deficient number, since it is larger than the sum of its proper divisors (1554080025415).

20203040330213 is a wasteful number, since it uses less digits than its factorization.

20203040330213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554080025414.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20203040330213 its reverse (31203304030202), we get a palindrome (51406344360415).

The spelling of 20203040330213 in words is "twenty trillion, two hundred three billion, forty million, three hundred thirty thousand, two hundred thirteen".