1101180013 has 4 divisors (see below), whose sum is σ = 1101384988. Its totient is φ = 1100975040.

The previous prime is 1101179999. The next prime is 1101180019. The reversal of 1101180013 is 3100811011.

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 186540964 + 914639049 = 13658^2 + 30243^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101180013 - 2⁹ = 1101179501 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 (1101180019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94206 + ... + 105247.

It is an arithmetic number, because the mean of its divisors is an integer number (275346247).

Almost surely, 2^1101180013 is an apocalyptic number.

It is an amenable number.

1101180013 is a deficient number, since it is larger than the sum of its proper divisors (204975).

1101180013 is an equidigital number, since it uses as much as digits as its factorization.

1101180013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204974.

The product of its (nonzero) digits is 24, while the sum is 16.

The square root of 1101180013 is about 33184.0325005868. The cubic root of 1101180013 is about 1032.6491059552.

Adding to 1101180013 its reverse (3100811011), we get a palindrome (4201991024).

The spelling of 1101180013 in words is "one billion, one hundred one million, one hundred eighty thousand, thirteen".