1113665263 has 2 divisors, whose sum is σ = 1113665264. Its totient is φ = 1113665262.

The previous prime is 1113665261. The next prime is 1113665281. The reversal of 1113665263 is 3625663111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113665263 - 2¹ = 1113665261 is a prime.

It is a super-3 number, since 3×1113665263³ (a number of 28 digits) contains 333 as substring.

Together with 1113665261, 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 (1113665261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556832631 + 556832632.

It is an arithmetic number, because the mean of its divisors is an integer number (556832632).

Almost surely, 2^1113665263 is an apocalyptic number.

1113665263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113665263 is an equidigital number, since it uses as much as digits as its factorization.

1113665263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 1113665263 is about 33371.6236194765. The cubic root of 1113665263 is about 1036.5371956853.

The spelling of 1113665263 in words is "one billion, one hundred thirteen million, six hundred sixty-five thousand, two hundred sixty-three".