20213431310203 has 8 divisors (see below), whose sum is σ = 20221479663840. Its totient is φ = 20205383936640.

The previous prime is 20213431310197. The next prime is 20213431310221. The reversal of 20213431310203 is 30201313431202.

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 20213431310203 - 2¹⁷ = 20213431179131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213431310263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42487401 + ... + 42960517.

It is an arithmetic number, because the mean of its divisors is an integer number (2527684957980).

Almost surely, 2^{20213431310203} is an apocalyptic number.

20213431310203 is a deficient number, since it is larger than the sum of its proper divisors (8048353637).

20213431310203 is a wasteful number, since it uses less digits than its factorization.

20213431310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490037.

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

Adding to 20213431310203 its reverse (30201313431202), we get a palindrome (50414744741405).

The spelling of 20213431310203 in words is "twenty trillion, two hundred thirteen billion, four hundred thirty-one million, three hundred ten thousand, two hundred three".