20730320401 has 8 divisors (see below), whose sum is σ = 23991691520. Its totient is φ = 17543923488.

The previous prime is 20730320381. The next prime is 20730320423. The reversal of 20730320401 is 10402303702.

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

It is not a de Polignac number, because 20730320401 - 2¹³ = 20730312209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20730320701) 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, 18742956 + ... + 18744061.

It is an arithmetic number, because the mean of its divisors is an integer number (2998961440).

Almost surely, 2^20730320401 is an apocalyptic number.

It is an amenable number.

20730320401 is a deficient number, since it is larger than the sum of its proper divisors (3261371119).

20730320401 is an equidigital number, since it uses as much as digits as its factorization.

20730320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37487103.

The product of its (nonzero) digits is 1008, while the sum is 22.

The spelling of 20730320401 in words is "twenty billion, seven hundred thirty million, three hundred twenty thousand, four hundred one".