210402121141 has 2 divisors, whose sum is σ = 210402121142. Its totient is φ = 210402121140.

The previous prime is 210402121133. The next prime is 210402121151. The reversal of 210402121141 is 141121204012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178298440516 + 32103680625 = 422254^2 + 179175^2 .

It is a cyclic number.

It is not a de Polignac number, because 210402121141 - 2³ = 210402121133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210402121151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105201060570 + 105201060571.

It is an arithmetic number, because the mean of its divisors is an integer number (105201060571).

Almost surely, 2^210402121141 is an apocalyptic number.

It is an amenable number.

210402121141 is a deficient number, since it is larger than the sum of its proper divisors (1).

210402121141 is an equidigital number, since it uses as much as digits as its factorization.

210402121141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210402121141 its reverse (141121204012), we get a palindrome (351523325153).

The spelling of 210402121141 in words is "two hundred ten billion, four hundred two million, one hundred twenty-one thousand, one hundred forty-one".