1115343101 has 4 divisors (see below), whose sum is σ = 1126386204. Its totient is φ = 1104300000.

The previous prime is 1115343023. The next prime is 1115343107. The reversal of 1115343101 is 1013435111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 775678201 + 339664900 = 27851^2 + 18430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115343101 - 2¹⁸ = 1115080957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115343107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521400 + ... + 5521601.

It is an arithmetic number, because the mean of its divisors is an integer number (281596551).

Almost surely, 2^1115343101 is an apocalyptic number.

It is an amenable number.

1115343101 is a deficient number, since it is larger than the sum of its proper divisors (11043103).

1115343101 is a wasteful number, since it uses less digits than its factorization.

1115343101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11043102.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1115343101 is about 33396.7528511381. The cubic root of 1115343101 is about 1037.0574803381.

Adding to 1115343101 its reverse (1013435111), we get a palindrome (2128778212).

The spelling of 1115343101 in words is "one billion, one hundred fifteen million, three hundred forty-three thousand, one hundred one".