143312400221 has 8 divisors (see below), whose sum is σ = 144157566240. Its totient is φ = 142467427312.

The previous prime is 143312400199. The next prime is 143312400227. The reversal of 143312400221 is 122004213341.

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

It is a cyclic number.

It is not a de Polignac number, because 143312400221 - 2¹⁸ = 143312138077 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 (143312400227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606826 + ... + 1693668.

It is an arithmetic number, because the mean of its divisors is an integer number (18019695780).

Almost surely, 2^143312400221 is an apocalyptic number.

It is an amenable number.

143312400221 is a deficient number, since it is larger than the sum of its proper divisors (845166019).

143312400221 is an equidigital number, since it uses as much as digits as its factorization.

143312400221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96555.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 143312400221 its reverse (122004213341), we get a palindrome (265316613562).

The spelling of 143312400221 in words is "one hundred forty-three billion, three hundred twelve million, four hundred thousand, two hundred twenty-one".