1312988271 has 24 divisors (see below), whose sum is σ = 2041931520. Its totient is φ = 748267632.

The previous prime is 1312988263. The next prime is 1312988297. The reversal of 1312988271 is 1728892131.

1312988271 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1312988271 - 2³ = 1312988263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312988231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43930 + ... + 67496.

It is an arithmetic number, because the mean of its divisors is an integer number (85080480).

Almost surely, 2^1312988271 is an apocalyptic number.

1312988271 is a deficient number, since it is larger than the sum of its proper divisors (728943249).

1312988271 is a wasteful number, since it uses less digits than its factorization.

1312988271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23963 (or 23956 counting only the distinct ones).

The product of its digits is 48384, while the sum is 42.

The square root of 1312988271 is about 36235.1800188712. The cubic root of 1312988271 is about 1095.0155390718.

The spelling of 1312988271 in words is "one billion, three hundred twelve million, nine hundred eighty-eight thousand, two hundred seventy-one".