143894332923 has 24 divisors (see below), whose sum is σ = 210920816400. Its totient is φ = 87194479680.

The previous prime is 143894332913. The next prime is 143894332927. The reversal of 143894332923 is 329233498341.

It is not a de Polignac number, because 143894332923 - 2⁶ = 143894332859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143894332927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2464593 + ... + 2522301.

It is an arithmetic number, because the mean of its divisors is an integer number (8788367350).

Almost surely, 2^143894332923 is an apocalyptic number.

143894332923 is a deficient number, since it is larger than the sum of its proper divisors (67026483477).

143894332923 is a wasteful number, since it uses less digits than its factorization.

143894332923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64603 (or 64592 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 51.

The spelling of 143894332923 in words is "one hundred forty-three billion, eight hundred ninety-four million, three hundred thirty-two thousand, nine hundred twenty-three".