142331320 has 16 divisors (see below), whose sum is σ = 320245560. Its totient is φ = 56932512.

The previous prime is 142331317. The next prime is 142331339. The reversal of 142331320 is 23133241.

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, 1779102 + ... + 1779181.

Almost surely, 2^142331320 is an apocalyptic number.

142331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142331320 is an abundant number, since it is smaller than the sum of its proper divisors (177914240).

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

142331320 is a wasteful number, since it uses less digits than its factorization.

142331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558294 (or 3558290 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 142331320 is about 11930.2690665383. The cubic root of 142331320 is about 522.1157878424.

Adding to 142331320 its reverse (23133241), we get a palindrome (165464561).

The spelling of 142331320 in words is "one hundred forty-two million, three hundred thirty-one thousand, three hundred twenty".