811235865201 has 8 divisors (see below), whose sum is σ = 1089543060384. Its totient is φ = 536876290080.

The previous prime is 811235865199. The next prime is 811235865217. The reversal of 811235865201 is 102568532118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 811235865201 - 2¹ = 811235865199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (811235865281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986904535 + ... + 986905356.

It is an arithmetic number, because the mean of its divisors is an integer number (136192882548).

Almost surely, 2^811235865201 is an apocalyptic number.

It is an amenable number.

811235865201 is a deficient number, since it is larger than the sum of its proper divisors (278307195183).

811235865201 is a wasteful number, since it uses less digits than its factorization.

811235865201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973810031.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 811235865201 in words is "eight hundred eleven billion, two hundred thirty-five million, eight hundred sixty-five thousand, two hundred one".