2021020097 has 8 divisors (see below), whose sum is σ = 2143464000. Its totient is φ = 1901457360.

The previous prime is 2021020091. The next prime is 2021020147. The reversal of 2021020097 is 7900201202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021020097 - 2⁶ = 2021020033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021020091) 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, 718847 + ... + 721652.

It is an arithmetic number, because the mean of its divisors is an integer number (267933000).

Almost surely, 2^2021020097 is an apocalyptic number.

It is an amenable number.

2021020097 is a deficient number, since it is larger than the sum of its proper divisors (122443903).

2021020097 is a wasteful number, since it uses less digits than its factorization.

2021020097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440583.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2021020097 is about 44955.7571062928. The cubic root of 2021020097 is about 1264.3196197501.

Adding to 2021020097 its reverse (7900201202), we get a palindrome (9921221299).

The spelling of 2021020097 in words is "two billion, twenty-one million, twenty thousand, ninety-seven".