143321321399 has 32 divisors (see below), whose sum is σ = 158063097600. Its totient is φ = 129611543040.

The previous prime is 143321321393. The next prime is 143321321411. The reversal of 143321321399 is 993123123341.

It is a cyclic number.

It is not a de Polignac number, because 143321321399 - 2¹² = 143321317303 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 (143321321393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3052997 + ... + 3099585.

It is an arithmetic number, because the mean of its divisors is an integer number (4939471800).

Almost surely, 2^143321321399 is an apocalyptic number.

143321321399 is a deficient number, since it is larger than the sum of its proper divisors (14741776201).

143321321399 is a wasteful number, since it uses less digits than its factorization.

143321321399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46763.

The product of its digits is 104976, while the sum is 41.

The spelling of 143321321399 in words is "one hundred forty-three billion, three hundred twenty-one million, three hundred twenty-one thousand, three hundred ninety-nine".