323131142140 has 24 divisors (see below), whose sum is σ = 683755368912. Its totient is φ = 128265795840.

The previous prime is 323131142051. The next prime is 323131142141. The reversal of 323131142140 is 41241131323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323131142141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61663629 + ... + 61668868.

It is an arithmetic number, because the mean of its divisors is an integer number (28489807038).

Almost surely, 2^323131142140 is an apocalyptic number.

It is an amenable number.

323131142140 is an abundant number, since it is smaller than the sum of its proper divisors (360624226772).

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

323131142140 is a wasteful number, since it uses less digits than its factorization.

323131142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123332637 (or 123332635 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 323131142140 its reverse (41241131323), we get a palindrome (364372273463).

The spelling of 323131142140 in words is "three hundred twenty-three billion, one hundred thirty-one million, one hundred forty-two thousand, one hundred forty".