312171121713 has 16 divisors (see below), whose sum is σ = 456603782400. Its totient is φ = 188137662480.

The previous prime is 312171121687. The next prime is 312171121729. The reversal of 312171121713 is 317121171213.

It is a happy number.

It is not a de Polignac number, because 312171121713 - 2¹² = 312171117617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312171121793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26417923 + ... + 26429736.

It is an arithmetic number, because the mean of its divisors is an integer number (28537736400).

Almost surely, 2^312171121713 is an apocalyptic number.

312171121713 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

312171121713 is a deficient number, since it is larger than the sum of its proper divisors (144432660687).

312171121713 is a wasteful number, since it uses less digits than its factorization.

312171121713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52847852.

The product of its digits is 1764, while the sum is 30.

Adding to 312171121713 its reverse (317121171213), we get a palindrome (629292292926).

The spelling of 312171121713 in words is "three hundred twelve billion, one hundred seventy-one million, one hundred twenty-one thousand, seven hundred thirteen".