21830797601 has 2 divisors, whose sum is σ = 21830797602. Its totient is φ = 21830797600.

The previous prime is 21830797589. The next prime is 21830797603. The reversal of 21830797601 is 10679703812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20599138576 + 1231659025 = 143524^2 + 35095^2 .

It is a cyclic number.

It is not a de Polignac number, because 21830797601 - 2¹⁰ = 21830796577 is a prime.

Together with 21830797603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21830797603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10915398800 + 10915398801.

It is an arithmetic number, because the mean of its divisors is an integer number (10915398801).

Almost surely, 2^21830797601 is an apocalyptic number.

It is an amenable number.

21830797601 is a deficient number, since it is larger than the sum of its proper divisors (1).

21830797601 is an equidigital number, since it uses as much as digits as its factorization.

21830797601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 21830797601 in words is "twenty-one billion, eight hundred thirty million, seven hundred ninety-seven thousand, six hundred one".