140121043303440 has 80 divisors (see below), whose sum is σ = 435990012264000. Its totient is φ = 37226705911296.

The previous prime is 140121043303433. The next prime is 140121043303459. The reversal of 140121043303440 is 44303340121041.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a junction number, because it is equal to n+sod(n) for n = 140121043303398 and 140121043303407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1085135590 + ... + 1085264709.

It is an arithmetic number, because the mean of its divisors is an integer number (5449875153300).

Almost surely, 2^{140121043303440} is an apocalyptic number.

140121043303440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140121043303440 is an abundant number, since it is smaller than the sum of its proper divisors (295868968960560).

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

140121043303440 is a wasteful number, since it uses less digits than its factorization.

140121043303440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170400584 (or 2170400578 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 140121043303440 its reverse (44303340121041), we get a palindrome (184424383424481).

The spelling of 140121043303440 in words is "one hundred forty trillion, one hundred twenty-one billion, forty-three million, three hundred three thousand, four hundred forty".