113513180749 has 4 divisors (see below), whose sum is σ = 113569854336. Its totient is φ = 113456507164.

The previous prime is 113513180747. The next prime is 113513180761. The reversal of 113513180749 is 947081315311.

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 a cyclic number.

It is not a de Polignac number, because 113513180749 - 2¹ = 113513180747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113513180743) 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, 28333789 + ... + 28337794.

It is an arithmetic number, because the mean of its divisors is an integer number (28392463584).

Almost surely, 2^113513180749 is an apocalyptic number.

It is an amenable number.

113513180749 is a deficient number, since it is larger than the sum of its proper divisors (56673587).

113513180749 is an equidigital number, since it uses as much as digits as its factorization.

113513180749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56673586.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 113513180749 in words is "one hundred thirteen billion, five hundred thirteen million, one hundred eighty thousand, seven hundred forty-nine".