143031021423 has 32 divisors (see below), whose sum is σ = 200601178560. Its totient is φ = 90519260160.

The previous prime is 143031021391. The next prime is 143031021433. The reversal of 143031021423 is 324120130341.

It is a happy number.

143031021423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 143031021423 - 2⁵ = 143031021391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143031021393 and 143031021402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143031021433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18873211 + ... + 18880787.

It is an arithmetic number, because the mean of its divisors is an integer number (6268786830).

Almost surely, 2^143031021423 is an apocalyptic number.

143031021423 is a deficient number, since it is larger than the sum of its proper divisors (57570157137).

143031021423 is a wasteful number, since it uses less digits than its factorization.

143031021423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11227.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 143031021423 its reverse (324120130341), we get a palindrome (467151151764).

The spelling of 143031021423 in words is "one hundred forty-three billion, thirty-one million, twenty-one thousand, four hundred twenty-three".