312221340130143 has 8 divisors (see below), whose sum is σ = 416304283191088. Its totient is φ = 208142978577984.

The previous prime is 312221340130123. The next prime is 312221340130163. The reversal of 312221340130143 is 341031043122213.

It is an interprime number because it is at equal distance from previous prime (312221340130123) and next prime (312221340130163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312221340130143 - 2³⁶ = 312152620653407 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 312221340130143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312221340130123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145218180 + ... + 1145490777.

It is an arithmetic number, because the mean of its divisors is an integer number (52038035398886).

Almost surely, 2^{312221340130143} is an apocalyptic number.

312221340130143 is a deficient number, since it is larger than the sum of its proper divisors (104082943060945).

312221340130143 is a wasteful number, since it uses less digits than its factorization.

312221340130143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290754393.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 312221340130143 its reverse (341031043122213), we get a palindrome (653252383252356).

The spelling of 312221340130143 in words is "three hundred twelve trillion, two hundred twenty-one billion, three hundred forty million, one hundred thirty thousand, one hundred forty-three".