113315145247 has 4 divisors (see below), whose sum is σ = 119279100280. Its totient is φ = 107351190216.

The previous prime is 113315145221. The next prime is 113315145253. The reversal of 113315145247 is 742541513311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742541513311 = 13 ⋅57118577947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113315145247 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 (113315145257) 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, 2981977488 + ... + 2981977525.

It is an arithmetic number, because the mean of its divisors is an integer number (29819775070).

Almost surely, 2^113315145247 is an apocalyptic number.

113315145247 is a deficient number, since it is larger than the sum of its proper divisors (5963955033).

113315145247 is an equidigital number, since it uses as much as digits as its factorization.

113315145247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5963955032.

The product of its digits is 50400, while the sum is 37.

Adding to 113315145247 its reverse (742541513311), we get a palindrome (855856658558).

The spelling of 113315145247 in words is "one hundred thirteen billion, three hundred fifteen million, one hundred forty-five thousand, two hundred forty-seven".