6891030101 has 2 divisors, whose sum is σ = 6891030102. Its totient is φ = 6891030100.

The previous prime is 6891030089. The next prime is 6891030103. The reversal of 6891030101 is 1010301986.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6886510225 + 4519876 = 82985^2 + 2126^2 .

It is a cyclic number.

It is not a de Polignac number, because 6891030101 - 2⁶ = 6891030037 is a prime.

It is a Sophie Germain prime.

Together with 6891030103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6891030103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445515050 + 3445515051.

It is an arithmetic number, because the mean of its divisors is an integer number (3445515051).

Almost surely, 2^6891030101 is an apocalyptic number.

It is an amenable number.

6891030101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6891030101 is an equidigital number, since it uses as much as digits as its factorization.

6891030101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 6891030101 is about 83012.2286232577. The cubic root of 6891030101 is about 1902.9529429345.

The spelling of 6891030101 in words is "six billion, eight hundred ninety-one million, thirty thousand, one hundred one".