113201001 has 6 divisors (see below), whose sum is σ = 163512570. Its totient is φ = 75467328.

The previous prime is 113200991. The next prime is 113201003. The reversal of 113201001 is 100102311.

It can be written as a sum of positive squares in only one way, i.e., 111513600 + 1687401 = 10560^2 + 1299^2 .

It is not a de Polignac number, because 113201001 - 2⁷ = 113200873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 12577889 = 113201001 / (1 + 1 + 3 + 2 + 0 + 1 + 0 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113201003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6288936 + ... + 6288953.

It is an arithmetic number, because the mean of its divisors is an integer number (27252095).

Almost surely, 2^113201001 is an apocalyptic number.

It is an amenable number.

113201001 is a deficient number, since it is larger than the sum of its proper divisors (50311569).

113201001 is a wasteful number, since it uses less digits than its factorization.

113201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577895 (or 12577892 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 113201001 is about 10639.5959039806. The cubic root of 113201001 is about 483.7452969116.

Adding to 113201001 its reverse (100102311), we get a palindrome (213303312).

It can be divided in two parts, 11320 and 1001, that added together give a palindrome (12321).

The spelling of 113201001 in words is "one hundred thirteen million, two hundred one thousand, one".