113198691947 has 4 divisors (see below), whose sum is σ = 123489482136. Its totient is φ = 102907901760.

The previous prime is 113198691887. The next prime is 113198691953. The reversal of 113198691947 is 749196891311.

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 113198691947 - 2¹⁴ = 113198675563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113198690947) 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, 5145395078 + ... + 5145395099.

It is an arithmetic number, because the mean of its divisors is an integer number (30872370534).

Almost surely, 2^113198691947 is an apocalyptic number.

113198691947 is a deficient number, since it is larger than the sum of its proper divisors (10290790189).

113198691947 is a wasteful number, since it uses less digits than its factorization.

113198691947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290790188.

The product of its digits is 2939328, while the sum is 59.

The spelling of 113198691947 in words is "one hundred thirteen billion, one hundred ninety-eight million, six hundred ninety-one thousand, nine hundred forty-seven".