113551443617 has 2 divisors, whose sum is σ = 113551443618. Its totient is φ = 113551443616.

The previous prime is 113551443587. The next prime is 113551443623. The reversal of 113551443617 is 716344155311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87594689296 + 25956754321 = 295964^2 + 161111^2 .

It is a cyclic number.

It is not a de Polignac number, because 113551443617 - 2⁸ = 113551443361 is a prime.

It is not a weakly prime, because it can be changed into another prime (113551443637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56775721808 + 56775721809.

It is an arithmetic number, because the mean of its divisors is an integer number (56775721809).

Almost surely, 2^113551443617 is an apocalyptic number.

It is an amenable number.

113551443617 is a deficient number, since it is larger than the sum of its proper divisors (1).

113551443617 is an equidigital number, since it uses as much as digits as its factorization.

113551443617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 41.

Adding to 113551443617 its reverse (716344155311), we get a palindrome (829895598928).

The spelling of 113551443617 in words is "one hundred thirteen billion, five hundred fifty-one million, four hundred forty-three thousand, six hundred seventeen".