1201113 has 12 divisors (see below), whose sum is σ = 1744548. Its totient is φ = 796320.

The previous prime is 1201111. The next prime is 1201117. The reversal of 1201113 is 3111021.

It can be written as a sum of positive squares in 2 ways, for example, as 28224 + 1172889 = 168^2 + 1083^2 .

It is not a de Polignac number, because 1201113 - 2¹ = 1201111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1201095 and 1201104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2643 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (145379).

2^1201113 is an apocalyptic number.

It is an amenable number.

1201113 is a deficient number, since it is larger than the sum of its proper divisors (543435).

1201113 is a wasteful number, since it uses less digits than its factorization.

1201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744 (or 741 counting only the distinct ones).

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

The square root of 1201113 is about 1095.9530099416. The cubic root of 1201113 is about 106.2987006269.

Adding to 1201113 its reverse (3111021), we get a palindrome (4312134).

The spelling of 1201113 in words is "one million, two hundred one thousand, one hundred thirteen".