2803196021 has 2 divisors, whose sum is σ = 2803196022. Its totient is φ = 2803196020.

The previous prime is 2803196017. The next prime is 2803196041. The reversal of 2803196021 is 1206913082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2606102500 + 197093521 = 51050^2 + 14039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2803196021 - 2² = 2803196017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2803196041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401598010 + 1401598011.

It is an arithmetic number, because the mean of its divisors is an integer number (1401598011).

Almost surely, 2^2803196021 is an apocalyptic number.

It is an amenable number.

2803196021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2803196021 is an equidigital number, since it uses as much as digits as its factorization.

2803196021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2803196021 is about 52945.2171683146. The cubic root of 2803196021 is about 1409.9958119018.

The spelling of 2803196021 in words is "two billion, eight hundred three million, one hundred ninety-six thousand, twenty-one".