1235012113 has 2 divisors, whose sum is σ = 1235012114. Its totient is φ = 1235012112.

The previous prime is 1235012101. The next prime is 1235012171. The reversal of 1235012113 is 3112105321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1116027649 + 118984464 = 33407^2 + 10908^2 .

It is a cyclic number.

It is not a de Polignac number, because 1235012113 - 2²⁵ = 1201457681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1035012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617506056 + 617506057.

It is an arithmetic number, because the mean of its divisors is an integer number (617506057).

Almost surely, 2^1235012113 is an apocalyptic number.

It is an amenable number.

1235012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235012113 is an equidigital number, since it uses as much as digits as its factorization.

1235012113 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.

The square root of 1235012113 is about 35142.7391220434. The cubic root of 1235012113 is about 1072.8946319898.

Adding to 1235012113 its reverse (3112105321), we get a palindrome (4347117434).

The spelling of 1235012113 in words is "one billion, two hundred thirty-five million, twelve thousand, one hundred thirteen".