20021302097 has 8 divisors (see below), whose sum is σ = 20449915392. Its totient is φ = 19592798400.

The previous prime is 20021302031. The next prime is 20021302123. The reversal of 20021302097 is 79020312002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20021302097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021302297) by changing a digit.

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, 418697 + ... + 464057.

It is an arithmetic number, because the mean of its divisors is an integer number (2556239424).

Almost surely, 2^20021302097 is an apocalyptic number.

It is an amenable number.

20021302097 is a deficient number, since it is larger than the sum of its proper divisors (428613295).

20021302097 is an equidigital number, since it uses as much as digits as its factorization.

20021302097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54799.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 20021302097 its reverse (79020312002), we get a palindrome (99041614099).

The spelling of 20021302097 in words is "twenty billion, twenty-one million, three hundred two thousand, ninety-seven".