316242571421 has 6 divisors (see below), whose sum is σ = 367874011710. Its totient is φ = 271065061176.

The previous prime is 316242571373. The next prime is 316242571423. The reversal of 316242571421 is 124175242613.

It can be written as a sum of positive squares in only one way, i.e., 296573911396 + 19668660025 = 544586^2 + 140245^2 .

It is not a de Polignac number, because 316242571421 - 2³⁰ = 315168829597 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 (316242571423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3226964966 + ... + 3226965063.

It is an arithmetic number, because the mean of its divisors is an integer number (61312335285).

Almost surely, 2^316242571421 is an apocalyptic number.

It is an amenable number.

316242571421 is a deficient number, since it is larger than the sum of its proper divisors (51631440289).

316242571421 is an equidigital number, since it uses as much as digits as its factorization.

316242571421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453930043 (or 6453930036 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The spelling of 316242571421 in words is "three hundred sixteen billion, two hundred forty-two million, five hundred seventy-one thousand, four hundred twenty-one".