143923870009 has 4 divisors (see below), whose sum is σ = 143940650980. Its totient is φ = 143907089040.

The previous prime is 143923870003. The next prime is 143923870019. The reversal of 143923870009 is 900078329341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900078329341 = 1583 ⋅568590227.

It can be written as a sum of positive squares in 2 ways, for example, as 71022250000 + 72901620009 = 266500^2 + 270003^2 .

It is a cyclic number.

It is not a de Polignac number, because 143923870009 - 2⁵ = 143923869977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143923870003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8377614 + ... + 8394775.

It is an arithmetic number, because the mean of its divisors is an integer number (35985162745).

Almost surely, 2^143923870009 is an apocalyptic number.

It is an amenable number.

143923870009 is a deficient number, since it is larger than the sum of its proper divisors (16780971).

143923870009 is an equidigital number, since it uses as much as digits as its factorization.

143923870009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16780970.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 143923870009 in words is "one hundred forty-three billion, nine hundred twenty-three million, eight hundred seventy thousand, nine".