143243231404 has 24 divisors (see below), whose sum is σ = 308523883808. Its totient is φ = 56667651840.

The previous prime is 143243231399. The next prime is 143243231407. The reversal of 143243231404 is 404132342341.

It is a super-2 number, since 2×143243231404² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143243231407) 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 7 ways as a sum of consecutive naturals, for example, 196762317 + ... + 196763044.

Almost surely, 2^143243231404 is an apocalyptic number.

143243231404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

143243231404 is an abundant number, since it is smaller than the sum of its proper divisors (165280652404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143243231404 is a wasteful number, since it uses less digits than its factorization.

143243231404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393525385 (or 393525383 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 143243231404 its reverse (404132342341), we get a palindrome (547375573745).

The spelling of 143243231404 in words is "one hundred forty-three billion, two hundred forty-three million, two hundred thirty-one thousand, four hundred four".