210231013 has 2 divisors, whose sum is σ = 210231014. Its totient is φ = 210231012.

The previous prime is 210230987. The next prime is 210231053. The reversal of 210231013 is 310132012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186240609 + 23990404 = 13647^2 + 4898^2 .

It is a cyclic number.

It is not a de Polignac number, because 210231013 - 2¹⁷ = 210099941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210230984 and 210231002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210231053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105115506 + 105115507.

It is an arithmetic number, because the mean of its divisors is an integer number (105115507).

Almost surely, 2^210231013 is an apocalyptic number.

It is an amenable number.

210231013 is a deficient number, since it is larger than the sum of its proper divisors (1).

210231013 is an equidigital number, since it uses as much as digits as its factorization.

210231013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 210231013 is about 14499.3452610799. The cubic root of 210231013 is about 594.6100714736.

Adding to 210231013 its reverse (310132012), we get a palindrome (520363025).

Subtracting 210231013 from its reverse (310132012), we obtain a palindrome (99900999).

The spelling of 210231013 in words is "two hundred ten million, two hundred thirty-one thousand, thirteen".