1113420513 has 4 divisors (see below), whose sum is σ = 1484560688. Its totient is φ = 742280340.

The previous prime is 1113420499. The next prime is 1113420523. The reversal of 1113420513 is 3150243111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1113420513 - 2⁵ = 1113420481 is a prime.

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 1113420513.

It is not an unprimeable number, because it can be changed into a prime (1113420523) 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, 185570083 + ... + 185570088.

It is an arithmetic number, because the mean of its divisors is an integer number (371140172).

Almost surely, 2^1113420513 is an apocalyptic number.

It is an amenable number.

1113420513 is a deficient number, since it is larger than the sum of its proper divisors (371140175).

1113420513 is an equidigital number, since it uses as much as digits as its factorization.

1113420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371140174.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1113420513 is about 33367.9563803359. The cubic root of 1113420513 is about 1036.4612569289.

Adding to 1113420513 its reverse (3150243111), we get a palindrome (4263663624).

The spelling of 1113420513 in words is "one billion, one hundred thirteen million, four hundred twenty thousand, five hundred thirteen".