113553747191 has 4 divisors (see below), whose sum is σ = 113711680800. Its totient is φ = 113395813584.

The previous prime is 113553747169. The next prime is 113553747211. The reversal of 113553747191 is 191747355311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113553747191 - 2¹⁰ = 113553746167 is a prime.

It is a super-2 number, since 2×113553747191² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113553747101) 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, 78965726 + ... + 78967163.

It is an arithmetic number, because the mean of its divisors is an integer number (28427920200).

Almost surely, 2^113553747191 is an apocalyptic number.

113553747191 is a deficient number, since it is larger than the sum of its proper divisors (157933609).

113553747191 is an equidigital number, since it uses as much as digits as its factorization.

113553747191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157933608.

The product of its digits is 396900, while the sum is 47.

The spelling of 113553747191 in words is "one hundred thirteen billion, five hundred fifty-three million, seven hundred forty-seven thousand, one hundred ninety-one".