20363303133653 has 4 divisors (see below), whose sum is σ = 21248664139488. Its totient is φ = 19477942127820.

The previous prime is 20363303133643. The next prime is 20363303133673. The reversal of 20363303133653 is 35633130336302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20363303133653 - 2¹⁰ = 20363303132629 is a prime.

It is a super-2 number, since 2×20363303133653² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20363303133653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363303133643) 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, 442680502883 + ... + 442680502928.

It is an arithmetic number, because the mean of its divisors is an integer number (5312166034872).

Almost surely, 2^{20363303133653} is an apocalyptic number.

20363303133653 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20363303133653 is a deficient number, since it is larger than the sum of its proper divisors (885361005835).

20363303133653 is an equidigital number, since it uses as much as digits as its factorization.

20363303133653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885361005834.

The product of its (nonzero) digits is 787320, while the sum is 41.

Adding to 20363303133653 its reverse (35633130336302), we get a palindrome (55996433469955).

The spelling of 20363303133653 in words is "twenty trillion, three hundred sixty-three billion, three hundred three million, one hundred thirty-three thousand, six hundred fifty-three".