140345334121 has 4 divisors (see below), whose sum is σ = 141072512212. Its totient is φ = 139618156032.

The previous prime is 140345334119. The next prime is 140345334131. The reversal of 140345334121 is 121433543041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121433543041 = 131 ⋅926973611.

It can be written as a sum of positive squares in 2 ways, for example, as 100260889600 + 40084444521 = 316640^2 + 200211^2 .

It is a cyclic number.

It is not a de Polignac number, because 140345334121 - 2¹ = 140345334119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140345334131) 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, 363588756 + ... + 363589141.

It is an arithmetic number, because the mean of its divisors is an integer number (35268128053).

Almost surely, 2^140345334121 is an apocalyptic number.

It is an amenable number.

140345334121 is a deficient number, since it is larger than the sum of its proper divisors (727178091).

140345334121 is an equidigital number, since it uses as much as digits as its factorization.

140345334121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727178090.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 140345334121 its reverse (121433543041), we get a palindrome (261778877162).

The spelling of 140345334121 in words is "one hundred forty billion, three hundred forty-five million, three hundred thirty-four thousand, one hundred twenty-one".