1103500513 has 2 divisors, whose sum is σ = 1103500514. Its totient is φ = 1103500512.

The previous prime is 1103500511. The next prime is 1103500579. The reversal of 1103500513 is 3150053011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1102704849 + 795664 = 33207^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103500513 - 2¹ = 1103500511 is a prime.

Together with 1103500511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1103500511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551750256 + 551750257.

It is an arithmetic number, because the mean of its divisors is an integer number (551750257).

Almost surely, 2^1103500513 is an apocalyptic number.

It is an amenable number.

1103500513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103500513 is an equidigital number, since it uses as much as digits as its factorization.

1103500513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 1103500513 is about 33218.9782052368. The cubic root of 1103500513 is about 1033.3739589878.

Adding to 1103500513 its reverse (3150053011), we get a palindrome (4253553524).

The spelling of 1103500513 in words is "one billion, one hundred three million, five hundred thousand, five hundred thirteen".