20352305203431 has 8 divisors (see below), whose sum is σ = 27277010083440. Its totient is φ = 13497901896192.

The previous prime is 20352305203423. The next prime is 20352305203457. The reversal of 20352305203431 is 13430250325302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20352305203431 - 2³ = 20352305203423 is a prime.

It is a super-2 number, since 2×20352305203431² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20352305203392 and 20352305203401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352305203031) 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, 17575392516 + ... + 17575393673.

It is an arithmetic number, because the mean of its divisors is an integer number (3409626260430).

Almost surely, 2^{20352305203431} is an apocalyptic number.

20352305203431 is a deficient number, since it is larger than the sum of its proper divisors (6924704880009).

20352305203431 is a wasteful number, since it uses less digits than its factorization.

20352305203431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35150786385.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 20352305203431 its reverse (13430250325302), we get a palindrome (33782555528733).

The spelling of 20352305203431 in words is "twenty trillion, three hundred fifty-two billion, three hundred five million, two hundred three thousand, four hundred thirty-one".