812110324313 has 4 divisors (see below), whose sum is σ = 812312295588. Its totient is φ = 811908353040.

The previous prime is 812110324279. The next prime is 812110324327. The reversal of 812110324313 is 313423011218.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18038638864 + 794071685449 = 134308^2 + 891107^2 .

It is a cyclic number.

It is not a de Polignac number, because 812110324313 - 2¹⁶ = 812110258777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812110324373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100979606 + ... + 100987647.

It is an arithmetic number, because the mean of its divisors is an integer number (203078073897).

Almost surely, 2^812110324313 is an apocalyptic number.

It is an amenable number.

812110324313 is a deficient number, since it is larger than the sum of its proper divisors (201971275).

812110324313 is a wasteful number, since it uses less digits than its factorization.

812110324313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201971274.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 812110324313 in words is "eight hundred twelve billion, one hundred ten million, three hundred twenty-four thousand, three hundred thirteen".