1113345553 has 2 divisors, whose sum is σ = 1113345554. Its totient is φ = 1113345552.

The previous prime is 1113345469. The next prime is 1113345599. The reversal of 1113345553 is 3555433111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009142289 + 104203264 = 31767^2 + 10208^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113345553 - 2⁹ = 1113345041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113345053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556672776 + 556672777.

It is an arithmetic number, because the mean of its divisors is an integer number (556672777).

Almost surely, 2^1113345553 is an apocalyptic number.

It is an amenable number.

1113345553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113345553 is an equidigital number, since it uses as much as digits as its factorization.

1113345553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 31.

The square root of 1113345553 is about 33366.8331281229. The cubic root of 1113345553 is about 1036.4379968103.

Adding to 1113345553 its reverse (3555433111), we get a palindrome (4668778664).

The spelling of 1113345553 in words is "one billion, one hundred thirteen million, three hundred forty-five thousand, five hundred fifty-three".