20210205243431 has 8 divisors (see below), whose sum is σ = 23145597419520. Its totient is φ = 17286868066968.

The previous prime is 20210205243329. The next prime is 20210205243433. The reversal of 20210205243431 is 13434250201202.

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 20210205243431 - 2¹⁰ = 20210205242407 is a prime.

It is a super-2 number, since 2×20210205243431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210205243394 and 20210205243403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210205243433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3013746311 + ... + 3013753016.

It is an arithmetic number, because the mean of its divisors is an integer number (2893199677440).

Almost surely, 2^{20210205243431} is an apocalyptic number.

20210205243431 is a deficient number, since it is larger than the sum of its proper divisors (2935392176089).

20210205243431 is an equidigital number, since it uses as much as digits as its factorization.

20210205243431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027499813.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20210205243431 its reverse (13434250201202), we get a palindrome (33644455444633).

The spelling of 20210205243431 in words is "twenty trillion, two hundred ten billion, two hundred five million, two hundred forty-three thousand, four hundred thirty-one".