140425320121 has 2 divisors, whose sum is σ = 140425320122. Its totient is φ = 140425320120.

The previous prime is 140425320109. The next prime is 140425320127. The reversal of 140425320121 is 121023524041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71813280400 + 68612039721 = 267980^2 + 261939^2 .

It is a cyclic number.

It is not a de Polignac number, because 140425320121 - 2⁹ = 140425319609 is a prime.

It is not a weakly prime, because it can be changed into another prime (140425320127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70212660060 + 70212660061.

It is an arithmetic number, because the mean of its divisors is an integer number (70212660061).

Almost surely, 2^140425320121 is an apocalyptic number.

It is an amenable number.

140425320121 is a deficient number, since it is larger than the sum of its proper divisors (1).

140425320121 is an equidigital number, since it uses as much as digits as its factorization.

140425320121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 140425320121 its reverse (121023524041), we get a palindrome (261448844162).

The spelling of 140425320121 in words is "one hundred forty billion, four hundred twenty-five million, three hundred twenty thousand, one hundred twenty-one".