2080023021 has 6 divisors (see below), whose sum is σ = 3004477710. Its totient is φ = 1386682008.

The previous prime is 2080023007. The next prime is 2080023031. The reversal of 2080023021 is 1203200802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1967366025 + 112656996 = 44355^2 + 10614^2 .

It is not a de Polignac number, because 2080023021 - 2¹¹ = 2080020973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2080022985 and 2080023003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2080023031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115556826 + ... + 115556843.

It is an arithmetic number, because the mean of its divisors is an integer number (500746285).

Almost surely, 2^2080023021 is an apocalyptic number.

It is an amenable number.

2080023021 is a deficient number, since it is larger than the sum of its proper divisors (924454689).

2080023021 is a wasteful number, since it uses less digits than its factorization.

2080023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231113675 (or 231113672 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2080023021 is about 45607.2693876755. The cubic root of 2080023021 is about 1276.5055691018.

Adding to 2080023021 its reverse (1203200802), we get a palindrome (3283223823).

The spelling of 2080023021 in words is "two billion, eighty million, twenty-three thousand, twenty-one".