1100231117 has 2 divisors, whose sum is σ = 1100231118. Its totient is φ = 1100231116.

The previous prime is 1100231089. The next prime is 1100231129. The reversal of 1100231117 is 7111320011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585349636 + 514881481 = 24194^2 + 22691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100231117 - 2¹⁸ = 1099968973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100231095 and 1100231104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100231147) 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, 550115558 + 550115559.

It is an arithmetic number, because the mean of its divisors is an integer number (550115559).

Almost surely, 2^1100231117 is an apocalyptic number.

It is an amenable number.

1100231117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100231117 is an equidigital number, since it uses as much as digits as its factorization.

1100231117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 17.

The square root of 1100231117 is about 33169.7319404303. The cubic root of 1100231117 is about 1032.3524066008.

Adding to 1100231117 its reverse (7111320011), we get a palindrome (8211551128).

The spelling of 1100231117 in words is "one billion, one hundred million, two hundred thirty-one thousand, one hundred seventeen".