210141242140909 has 2 divisors, whose sum is σ = 210141242140910. Its totient is φ = 210141242140908.

The previous prime is 210141242140889. The next prime is 210141242141009. The reversal of 210141242140909 is 909041242141012.

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., 143897058404100 + 66244183736809 = 11995710^2 + 8139053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210141242140909 is a prime.

It is a super-2 number, since 2×210141242140909² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210141242140309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105070621070454 + 105070621070455.

It is an arithmetic number, because the mean of its divisors is an integer number (105070621070455).

Almost surely, 2^{210141242140909} is an apocalyptic number.

It is an amenable number.

210141242140909 is a deficient number, since it is larger than the sum of its proper divisors (1).

210141242140909 is an equidigital number, since it uses as much as digits as its factorization.

210141242140909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 210141242140909 in words is "two hundred ten trillion, one hundred forty-one billion, two hundred forty-two million, one hundred forty thousand, nine hundred nine".