312141420200021 has 16 divisors (see below), whose sum is σ = 313654282743600. Its totient is φ = 310630907117568.

The previous prime is 312141420199957. The next prime is 312141420200059. The reversal of 312141420200021 is 120002024141213.

It can be written as a sum of positive squares in 8 ways, for example, as 9801971256100 + 302339448943921 = 3130810^2 + 17387911^2 .

It is a cyclic number.

It is not a de Polignac number, because 312141420200021 - 2⁶ = 312141420199957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312141420200021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312141420200081) 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, 6317476565 + ... + 6317525973.

It is an arithmetic number, because the mean of its divisors is an integer number (19603392671475).

Almost surely, 2^{312141420200021} is an apocalyptic number.

It is an amenable number.

312141420200021 is a deficient number, since it is larger than the sum of its proper divisors (1512862543579).

312141420200021 is a wasteful number, since it uses less digits than its factorization.

312141420200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72568.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 312141420200021 its reverse (120002024141213), we get a palindrome (432143444341234).

The spelling of 312141420200021 in words is "three hundred twelve trillion, one hundred forty-one billion, four hundred twenty million, two hundred thousand, twenty-one".