20550320301 has 64 divisors (see below), whose sum is σ = 33594531840. Its totient is φ = 10921236480.

The previous prime is 20550320249. The next prime is 20550320303. The reversal of 20550320301 is 10302305502.

It is not a de Polignac number, because 20550320301 - 2⁷ = 20550320173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550320303) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2499285 + ... + 2507493.

It is an arithmetic number, because the mean of its divisors is an integer number (524914560).

Almost surely, 2^20550320301 is an apocalyptic number.

20550320301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20550320301 is a deficient number, since it is larger than the sum of its proper divisors (13044211539).

20550320301 is a wasteful number, since it uses less digits than its factorization.

20550320301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8386.

The product of its (nonzero) digits is 900, while the sum is 21.

Adding to 20550320301 its reverse (10302305502), we get a palindrome (30852625803).

The spelling of 20550320301 in words is "twenty billion, five hundred fifty million, three hundred twenty thousand, three hundred one".