801533133811 has 2 divisors, whose sum is σ = 801533133812. Its totient is φ = 801533133810.

The previous prime is 801533133703. The next prime is 801533133853. The reversal of 801533133811 is 118331335108.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 801533133811 - 2⁹ = 801533133299 is a prime.

It is not a weakly prime, because it can be changed into another prime (801533134811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400766566905 + 400766566906.

It is an arithmetic number, because the mean of its divisors is an integer number (400766566906).

Almost surely, 2^801533133811 is an apocalyptic number.

801533133811 is a deficient number, since it is larger than the sum of its proper divisors (1).

801533133811 is an equidigital number, since it uses as much as digits as its factorization.

801533133811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 801533133811 its reverse (118331335108), we get a palindrome (919864468919).

The spelling of 801533133811 in words is "eight hundred one billion, five hundred thirty-three million, one hundred thirty-three thousand, eight hundred eleven".