140243422321020 has 24 divisors (see below), whose sum is σ = 392681582499024. Its totient is φ = 37398245952256.

The previous prime is 140243422321007. The next prime is 140243422321109. The reversal of 140243422321020 is 20123224342041.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1168695185949 + ... + 1168695186068.

It is an arithmetic number, because the mean of its divisors is an integer number (16361732604126).

Almost surely, 2^{140243422321020} is an apocalyptic number.

140243422321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140243422321020 is an abundant number, since it is smaller than the sum of its proper divisors (252438160178004).

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

140243422321020 is a wasteful number, since it uses less digits than its factorization.

140243422321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337390372029 (or 2337390372027 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 140243422321020 its reverse (20123224342041), we get a palindrome (160366646663061).

The spelling of 140243422321020 in words is "one hundred forty trillion, two hundred forty-three billion, four hundred twenty-two million, three hundred twenty-one thousand, twenty".