1210320113 has 2 divisors, whose sum is σ = 1210320114. Its totient is φ = 1210320112.

The previous prime is 1210320101. The next prime is 1210320127. The reversal of 1210320113 is 3110230121.

It is an a-pointer prime, because the next prime (1210320127) can be obtained adding 1210320113 to its sum of digits (14).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1136566369 + 73753744 = 33713^2 + 8588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210320113 - 2²⁶ = 1143211249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1210320913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605160056 + 605160057.

It is an arithmetic number, because the mean of its divisors is an integer number (605160057).

Almost surely, 2^1210320113 is an apocalyptic number.

It is an amenable number.

1210320113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210320113 is an equidigital number, since it uses as much as digits as its factorization.

1210320113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1210320113 is about 34789.6552584242. The cubic root of 1210320113 is about 1065.6961990399.

Adding to 1210320113 its reverse (3110230121), we get a palindrome (4320550234).

The spelling of 1210320113 in words is "one billion, two hundred ten million, three hundred twenty thousand, one hundred thirteen".