20363218801 has 4 divisors (see below), whose sum is σ = 20469832704. Its totient is φ = 20256604900.

The previous prime is 20363218787. The next prime is 20363218807. The reversal of 20363218801 is 10881236302.

It is a happy number.

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 20363218801 - 2¹⁷ = 20363087729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20363218807) 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, 53306665 + ... + 53307046.

It is an arithmetic number, because the mean of its divisors is an integer number (5117458176).

Almost surely, 2^20363218801 is an apocalyptic number.

It is an amenable number.

20363218801 is a deficient number, since it is larger than the sum of its proper divisors (106613903).

20363218801 is a wasteful number, since it uses less digits than its factorization.

20363218801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106613902.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 20363218801 in words is "twenty billion, three hundred sixty-three million, two hundred eighteen thousand, eight hundred one".