113131201 has 4 divisors (see below), whose sum is σ = 113238100. Its totient is φ = 113024304.

The previous prime is 113131199. The next prime is 113131223. The reversal of 113131201 is 102131311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102131311 = 3931 ⋅25981.

It can be written as a sum of positive squares in 2 ways, for example, as 25240576 + 87890625 = 5024^2 + 9375^2 .

It is a cyclic number.

It is not a de Polignac number, because 113131201 - 2¹ = 113131199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113135201) 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, 51846 + ... + 53983.

It is an arithmetic number, because the mean of its divisors is an integer number (28309525).

Almost surely, 2^113131201 is an apocalyptic number.

It is an amenable number.

113131201 is a deficient number, since it is larger than the sum of its proper divisors (106899).

113131201 is a wasteful number, since it uses less digits than its factorization.

113131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106898.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 113131201 is about 10636.3151984134. The cubic root of 113131201 is about 483.6458503114.

Adding to 113131201 its reverse (102131311), we get a palindrome (215262512).

The spelling of 113131201 in words is "one hundred thirteen million, one hundred thirty-one thousand, two hundred one".