812101303 has 4 divisors (see below), whose sum is σ = 874570648. Its totient is φ = 749631960.

The previous prime is 812101291. The next prime is 812101321. The reversal of 812101303 is 303101218.

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

It is a cyclic number.

It is not a de Polignac number, because 812101303 - 2²⁵ = 778546871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812101393) 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, 31234653 + ... + 31234678.

It is an arithmetic number, because the mean of its divisors is an integer number (218642662).

Almost surely, 2^812101303 is an apocalyptic number.

812101303 is a deficient number, since it is larger than the sum of its proper divisors (62469345).

812101303 is a wasteful number, since it uses less digits than its factorization.

812101303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62469344.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 812101303 is about 28497.3911612976. The cubic root of 812101303 is about 932.9751343859.

The spelling of 812101303 in words is "eight hundred twelve million, one hundred one thousand, three hundred three".