113501613509 has 4 divisors (see below), whose sum is σ = 115916541504. Its totient is φ = 111086685516.

The previous prime is 113501613497. The next prime is 113501613521. The reversal of 113501613509 is 905316105311.

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 an interprime number because it is at equal distance from previous prime (113501613497) and next prime (113501613521).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113501613509 is a prime.

It is a super-2 number, since 2×113501613509² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113501613209) 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, 1207463927 + ... + 1207464020.

It is an arithmetic number, because the mean of its divisors is an integer number (28979135376).

Almost surely, 2^113501613509 is an apocalyptic number.

It is an amenable number.

113501613509 is a deficient number, since it is larger than the sum of its proper divisors (2414927995).

113501613509 is an equidigital number, since it uses as much as digits as its factorization.

113501613509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414927994.

The product of its (nonzero) digits is 12150, while the sum is 35.

The spelling of 113501613509 in words is "one hundred thirteen billion, five hundred one million, six hundred thirteen thousand, five hundred nine".