140321232321020 has 48 divisors (see below), whose sum is σ = 299534963212800. Its totient is φ = 55205296770624.

The previous prime is 140321232321019. The next prime is 140321232321029. The reversal of 140321232321020 is 20123232123041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321232321029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80058320 + ... + 81792279.

It is an arithmetic number, because the mean of its divisors is an integer number (6240311733600).

Almost surely, 2^{140321232321020} is an apocalyptic number.

140321232321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140321232321020 is an abundant number, since it is smaller than the sum of its proper divisors (159213730891780).

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

140321232321020 is a wasteful number, since it uses less digits than its factorization.

140321232321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161851322 (or 161851320 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 140321232321020 its reverse (20123232123041), we get a palindrome (160444464444061).

The spelling of 140321232321020 in words is "one hundred forty trillion, three hundred twenty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, twenty".