142231324240 has 20 divisors (see below), whose sum is σ = 330687829044. Its totient is φ = 56892529664.

The previous prime is 142231324219. The next prime is 142231324253. The reversal of 142231324240 is 42423132241.

It can be written as a sum of positive squares in 2 ways, for example, as 42784440336 + 99446883904 = 206844^2 + 315352^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 142231324199 and 142231324208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888945697 + ... + 888945856.

Almost surely, 2^142231324240 is an apocalyptic number.

142231324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142231324240 is an abundant number, since it is smaller than the sum of its proper divisors (188456504804).

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

142231324240 is a wasteful number, since it uses less digits than its factorization.

142231324240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777891566 (or 1777891560 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 142231324240 its reverse (42423132241), we get a palindrome (184654456481).

The spelling of 142231324240 in words is "one hundred forty-two billion, two hundred thirty-one million, three hundred twenty-four thousand, two hundred forty".