1312226271 has 8 divisors (see below), whose sum is σ = 1944038960. Its totient is φ = 874817496.

The previous prime is 1312226233. The next prime is 1312226273. The reversal of 1312226271 is 1726222131.

1312226271 is a `hidden beast` number, since 1 + 3 + 12 + 22 + 627 + 1 = 666.

It is not a de Polignac number, because 1312226271 - 2⁶ = 1312226207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 48600973 = 1312226271 / (1 + 3 + 1 + 2 + 2 + 2 + 6 + 2 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312226273) 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, 24300460 + ... + 24300513.

It is an arithmetic number, because the mean of its divisors is an integer number (243004870).

Almost surely, 2^1312226271 is an apocalyptic number.

1312226271 is a deficient number, since it is larger than the sum of its proper divisors (631812689).

1312226271 is an equidigital number, since it uses as much as digits as its factorization.

1312226271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48600982 (or 48600976 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1312226271 is about 36224.6638493720. The cubic root of 1312226271 is about 1094.8036653057.

It can be divided in two parts, 13122 and 26271, that added together give a palindrome (39393).

The spelling of 1312226271 in words is "one billion, three hundred twelve million, two hundred twenty-six thousand, two hundred seventy-one".