1135023013 has 2 divisors, whose sum is σ = 1135023014. Its totient is φ = 1135023012.

The previous prime is 1135023011. The next prime is 1135023031. The reversal of 1135023013 is 3103205311.

1135023013 = 23822² + 23823².

Together with next prime (1135023031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 567535329 + 567487684 = 23823^2 + 23822^2 .

It is an emirp because it is prime and its reverse (3103205311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1135023013 - 2¹ = 1135023011 is a prime.

Together with 1135023011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135023011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567511506 + 567511507.

It is an arithmetic number, because the mean of its divisors is an integer number (567511507).

Almost surely, 2^1135023013 is an apocalyptic number.

1135023013 is the 23823-rd centered square number.

It is an amenable number.

1135023013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135023013 is an equidigital number, since it uses as much as digits as its factorization.

1135023013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1135023013 is about 33690.1025970536. The cubic root of 1135023013 is about 1043.1214812660.

Adding to 1135023013 its reverse (3103205311), we get a palindrome (4238228324).

The spelling of 1135023013 in words is "one billion, one hundred thirty-five million, twenty-three thousand, thirteen".