21033098941 has 2 divisors, whose sum is σ = 21033098942. Its totient is φ = 21033098940.

The previous prime is 21033098927. The next prime is 21033098951. The reversal of 21033098941 is 14989033012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13266202041 + 7766896900 = 115179^2 + 88130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21033098941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21033098894 and 21033098903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21033098951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516549470 + 10516549471.

It is an arithmetic number, because the mean of its divisors is an integer number (10516549471).

Almost surely, 2^21033098941 is an apocalyptic number.

It is an amenable number.

21033098941 is a deficient number, since it is larger than the sum of its proper divisors (1).

21033098941 is an equidigital number, since it uses as much as digits as its factorization.

21033098941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 21033098941 in words is "twenty-one billion, thirty-three million, ninety-eight thousand, nine hundred forty-one".