801801101 has 2 divisors, whose sum is σ = 801801102. Its totient is φ = 801801100.

The previous prime is 801801071. The next prime is 801801103. The reversal of 801801101 is 101108108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 746655625 + 55145476 = 27325^2 + 7426^2 .

It is a cyclic number.

It is not a de Polignac number, because 801801101 - 2¹⁸ = 801538957 is a prime.

Together with 801801103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801801103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400900550 + 400900551.

It is an arithmetic number, because the mean of its divisors is an integer number (400900551).

Almost surely, 2^801801101 is an apocalyptic number.

It is an amenable number.

801801101 is a deficient number, since it is larger than the sum of its proper divisors (1).

801801101 is an equidigital number, since it uses as much as digits as its factorization.

801801101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 801801101 is about 28316.0926153310. The cubic root of 801801101 is about 929.0139087486.

Adding to 801801101 its reverse (101108108), we get a palindrome (902909209).

It can be divided in two parts, 801801 and 101, that multiplied together give a triangular number (80981901 = T₁₂₇₂₆).

The spelling of 801801101 in words is "eight hundred one million, eight hundred one thousand, one hundred one".