210243554604131 has 2 divisors, whose sum is σ = 210243554604132. Its totient is φ = 210243554604130.

The previous prime is 210243554604119. The next prime is 210243554604197. The reversal of 210243554604131 is 131406455342012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210243554604131 - 2¹⁰ = 210243554603107 is a prime.

It is a super-2 number, since 2×210243554604131² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210243554004131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105121777302065 + 105121777302066.

It is an arithmetic number, because the mean of its divisors is an integer number (105121777302066).

Almost surely, 2^{210243554604131} is an apocalyptic number.

210243554604131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210243554604131 is an equidigital number, since it uses as much as digits as its factorization.

210243554604131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 210243554604131 in words is "two hundred ten trillion, two hundred forty-three billion, five hundred fifty-four million, six hundred four thousand, one hundred thirty-one".