140321033421 has 12 divisors (see below), whose sum is σ = 191546945568. Its totient is φ = 91371832104.

The previous prime is 140321033407. The next prime is 140321033449. The reversal of 140321033421 is 124330123041.

It is a happy number.

It is not a de Polignac number, because 140321033421 - 2³⁵ = 105961295053 is a prime.

It is a super-3 number, since 3×140321033421³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140321033391 and 140321033400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321034421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12642825 + ... + 12653918.

It is an arithmetic number, because the mean of its divisors is an integer number (15962245464).

Almost surely, 2^140321033421 is an apocalyptic number.

It is an amenable number.

140321033421 is a deficient number, since it is larger than the sum of its proper divisors (51225912147).

140321033421 is an equidigital number, since it uses as much as digits as its factorization.

140321033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25296832 (or 25296789 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 140321033421 its reverse (124330123041), we get a palindrome (264651156462).

The spelling of 140321033421 in words is "one hundred forty billion, three hundred twenty-one million, thirty-three thousand, four hundred twenty-one".