1113101513 has 4 divisors (see below), whose sum is σ = 1113168768. Its totient is φ = 1113034260.

The previous prime is 1113101489. The next prime is 1113101527. The reversal of 1113101513 is 3151013111.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3151013111 = 149 ⋅21147739.

It is a cyclic number.

It is not a de Polignac number, because 1113101513 - 2¹⁸ = 1112839369 is a prime.

It is a super-4 number, since 4×1113101513⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1113101491 and 1113101500.

It is not an unprimeable number, because it can be changed into a prime (1113109513) 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, 10508 + ... + 48338.

It is an arithmetic number, because the mean of its divisors is an integer number (278292192).

Almost surely, 2^1113101513 is an apocalyptic number.

It is an amenable number.

1113101513 is a deficient number, since it is larger than the sum of its proper divisors (67255).

1113101513 is an equidigital number, since it uses as much as digits as its factorization.

1113101513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67254.

The product of its (nonzero) digits is 45, while the sum is 17.

The square root of 1113101513 is about 33363.1760028928. The cubic root of 1113101513 is about 1036.3622638656.

Adding to 1113101513 its reverse (3151013111), we get a palindrome (4264114624).

The spelling of 1113101513 in words is "one billion, one hundred thirteen million, one hundred one thousand, five hundred thirteen".