1103520513 has 8 divisors (see below), whose sum is σ = 1548800800. Its totient is φ = 696960288.

The previous prime is 1103520511. The next prime is 1103520521. The reversal of 1103520513 is 3150253011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1103520513 - 2¹ = 1103520511 is a prime.

It is a super-2 number, since 2×1103520513² = 2435515045223566338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103520513.

It is not an unprimeable number, because it can be changed into a prime (1103520511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9679948 + ... + 9680061.

It is an arithmetic number, because the mean of its divisors is an integer number (193600100).

Almost surely, 2^1103520513 is an apocalyptic number.

It is an amenable number.

1103520513 is a deficient number, since it is larger than the sum of its proper divisors (445280287).

1103520513 is a wasteful number, since it uses less digits than its factorization.

1103520513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19360031.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1103520513 is about 33219.2792366120. The cubic root of 1103520513 is about 1033.3802019556.

Adding to 1103520513 its reverse (3150253011), we get a palindrome (4253773524).

The spelling of 1103520513 in words is "one billion, one hundred three million, five hundred twenty thousand, five hundred thirteen".