210300211531 has 2 divisors, whose sum is σ = 210300211532. Its totient is φ = 210300211530.

The previous prime is 210300211493. The next prime is 210300211549. The reversal of 210300211531 is 135112003012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210300211531 - 2¹⁵ = 210300178763 is a prime.

It is a super-2 number, since 2×210300211531² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210300211499 and 210300211508.

It is not a weakly prime, because it can be changed into another prime (210300211571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105150105765 + 105150105766.

It is an arithmetic number, because the mean of its divisors is an integer number (105150105766).

Almost surely, 2^210300211531 is an apocalyptic number.

210300211531 is a deficient number, since it is larger than the sum of its proper divisors (1).

210300211531 is an equidigital number, since it uses as much as digits as its factorization.

210300211531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 210300211531 its reverse (135112003012), we get a palindrome (345412214543).

The spelling of 210300211531 in words is "two hundred ten billion, three hundred million, two hundred eleven thousand, five hundred thirty-one".