140440034410321 has 4 divisors (see below), whose sum is σ = 140440111931700. Its totient is φ = 140439956888944.

The previous prime is 140440034410309. The next prime is 140440034410441. The reversal of 140440034410321 is 123014430044041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47514675961921 + 92925358448400 = 6893089^2 + 9639780^2 .

It is a cyclic number.

It is not a de Polignac number, because 140440034410321 - 2²¹ = 140440032313169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140440034410021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35976586 + ... + 39688723.

It is an arithmetic number, because the mean of its divisors is an integer number (35110027982925).

Almost surely, 2^{140440034410321} is an apocalyptic number.

It is an amenable number.

140440034410321 is a deficient number, since it is larger than the sum of its proper divisors (77521379).

140440034410321 is an equidigital number, since it uses as much as digits as its factorization.

140440034410321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77521378.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 140440034410321 its reverse (123014430044041), we get a palindrome (263454464454362).

The spelling of 140440034410321 in words is "one hundred forty trillion, four hundred forty billion, thirty-four million, four hundred ten thousand, three hundred twenty-one".