201001113 has 6 divisors (see below), whose sum is σ = 290334954. Its totient is φ = 134000736.

The previous prime is 201001109. The next prime is 201001153. The reversal of 201001113 is 311100102.

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 68359824 = 11517^2 + 8268^2 .

It is not a de Polignac number, because 201001113 - 2² = 201001109 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: 22333457 = 201001113 / (2 + 0 + 1 + 0 + 0 + 1 + 1 + 1 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 201001095 and 201001104.

It is not an unprimeable number, because it can be changed into a prime (201001153) 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, 11166720 + ... + 11166737.

It is an arithmetic number, because the mean of its divisors is an integer number (48389159).

Almost surely, 2^201001113 is an apocalyptic number.

It is an amenable number.

201001113 is a deficient number, since it is larger than the sum of its proper divisors (89333841).

201001113 is a wasteful number, since it uses less digits than its factorization.

201001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333463 (or 22333460 counting only the distinct ones).

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

The square root of 201001113 is about 14177.4861311870. The cubic root of 201001113 is about 585.7776814726. Note that the first 3 decimals are identical.

Adding to 201001113 its reverse (311100102), we get a palindrome (512101215).

The spelling of 201001113 in words is "two hundred one million, one thousand, one hundred thirteen".