140243030365321 has 8 divisors (see below), whose sum is σ = 151032158703944. Its totient is φ = 129454073873280.

The previous prime is 140243030365261. The next prime is 140243030365331. The reversal of 140243030365321 is 123563030342041.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3945927982096 + 136297102383225 = 1986436^2 + 11674635^2 .

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

It is not a de Polignac number, because 140243030365321 - 2⁹ = 140243030364809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140243030365331) 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, 41264190 + ... + 44533351.

It is an arithmetic number, because the mean of its divisors is an integer number (18879019837993).

Almost surely, 2^{140243030365321} is an apocalyptic number.

It is an amenable number.

140243030365321 is a deficient number, since it is larger than the sum of its proper divisors (10789128338623).

140243030365321 is a wasteful number, since it uses less digits than its factorization.

140243030365321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85923291.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 140243030365321 in words is "one hundred forty trillion, two hundred forty-three billion, thirty million, three hundred sixty-five thousand, three hundred twenty-one".