140213043050621 has 2 divisors, whose sum is σ = 140213043050622. Its totient is φ = 140213043050620.

The previous prime is 140213043050581. The next prime is 140213043050629. The reversal of 140213043050621 is 126050340312041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138862915248121 + 1350127802500 = 11784011^2 + 1161950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140213043050621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140213043050629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70106521525310 + 70106521525311.

It is an arithmetic number, because the mean of its divisors is an integer number (70106521525311).

Almost surely, 2^{140213043050621} is an apocalyptic number.

It is an amenable number.

140213043050621 is a deficient number, since it is larger than the sum of its proper divisors (1).

140213043050621 is an equidigital number, since it uses as much as digits as its factorization.

140213043050621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 140213043050621 its reverse (126050340312041), we get a palindrome (266263383362662).

The spelling of 140213043050621 in words is "one hundred forty trillion, two hundred thirteen billion, forty-three million, fifty thousand, six hundred twenty-one".