20346503001236 has 24 divisors (see below), whose sum is σ = 35762346587520. Its totient is φ = 10128690883872.

The previous prime is 20346503001191. The next prime is 20346503001313. The reversal of 20346503001236 is 63210030564302.

It is a junction number, because it is equal to n+sod(n) for n = 20346503001196 and 20346503001205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134399561 + ... + 134550863.

It is an arithmetic number, because the mean of its divisors is an integer number (1490097774480).

Almost surely, 2^{20346503001236} is an apocalyptic number.

It is an amenable number.

20346503001236 is a deficient number, since it is larger than the sum of its proper divisors (15415843586284).

20346503001236 is a wasteful number, since it uses less digits than its factorization.

20346503001236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298343 (or 298341 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 20346503001236 its reverse (63210030564302), we get a palindrome (83556533565538).

The spelling of 20346503001236 in words is "twenty trillion, three hundred forty-six billion, five hundred three million, one thousand, two hundred thirty-six".