140321013010421 has 8 divisors (see below), whose sum is σ = 147148157245080. Its totient is φ = 133626434683392.

The previous prime is 140321013010417. The next prime is 140321013010433. The reversal of 140321013010421 is 124010310123041.

It can be written as a sum of positive squares in 4 ways, for example, as 38043915600625 + 102277097409796 = 6167975^2 + 10113214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140321013010421 - 2² = 140321013010417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140321013010481) 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, 33141474740 + ... + 33141478973.

It is an arithmetic number, because the mean of its divisors is an integer number (18393519655635).

Almost surely, 2^{140321013010421} is an apocalyptic number.

It is an amenable number.

140321013010421 is a deficient number, since it is larger than the sum of its proper divisors (6827144234659).

140321013010421 is an equidigital number, since it uses as much as digits as its factorization.

140321013010421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66282953815.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 140321013010421 its reverse (124010310123041), we get a palindrome (264331323133462).

The spelling of 140321013010421 in words is "one hundred forty trillion, three hundred twenty-one billion, thirteen million, ten thousand, four hundred twenty-one".