20203041331213 has 4 divisors (see below), whose sum is σ = 21757121433628. Its totient is φ = 18648961228800.

The previous prime is 20203041331189. The next prime is 20203041331229. The reversal of 20203041331213 is 31213314030202.

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 9433762102249 + 10769279228964 = 3071443^2 + 3281658^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203041331213 - 2¹⁷ = 20203041200141 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 (20203044331213) 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, 777040051188 + ... + 777040051213.

It is an arithmetic number, because the mean of its divisors is an integer number (5439280358407).

Almost surely, 2^{20203041331213} is an apocalyptic number.

It is an amenable number.

20203041331213 is a deficient number, since it is larger than the sum of its proper divisors (1554080102415).

20203041331213 is a wasteful number, since it uses less digits than its factorization.

20203041331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554080102414.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20203041331213 its reverse (31213314030202), we get a palindrome (51416355361415).

The spelling of 20203041331213 in words is "twenty trillion, two hundred three billion, forty-one million, three hundred thirty-one thousand, two hundred thirteen".