1312108971 has 4 divisors (see below), whose sum is σ = 1749478632. Its totient is φ = 874739312.

The previous prime is 1312108961. The next prime is 1312108981. The reversal of 1312108971 is 1798012131.

1312108971 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1798012131 = 3 ⋅599337377.

It is an interprime number because it is at equal distance from previous prime (1312108961) and next prime (1312108981).

It is a cyclic number.

It is not a de Polignac number, because 1312108971 - 2⁵ = 1312108939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312108921) 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, 218684826 + ... + 218684831.

It is an arithmetic number, because the mean of its divisors is an integer number (437369658).

Almost surely, 2^1312108971 is an apocalyptic number.

1312108971 is a deficient number, since it is larger than the sum of its proper divisors (437369661).

1312108971 is an equidigital number, since it uses as much as digits as its factorization.

1312108971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437369660.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 1312108971 is about 36223.0447505452. The cubic root of 1312108971 is about 1094.7710428078.

The spelling of 1312108971 in words is "one billion, three hundred twelve million, one hundred eight thousand, nine hundred seventy-one".