1213113 has 8 divisors (see below), whose sum is σ = 1764576. Its totient is φ = 735200.

The previous prime is 1213109. The next prime is 1213129. The reversal of 1213113 is 3113121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213113 - 2² = 1213109 is a prime.

1213113 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1213133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18348 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (220572).

2^1213113 is an apocalyptic number.

It is an amenable number.

1213113 is a deficient number, since it is larger than the sum of its proper divisors (551463).

1213113 is a wasteful number, since it uses less digits than its factorization.

1213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36775.

The product of its digits is 18, while the sum is 12.

The square root of 1213113 is about 1101.4140910666. The cubic root of 1213113 is about 106.6515288848.

Adding to 1213113 its reverse (3113121), we get a palindrome (4326234).

It can be divided in two parts, 1213 and 113, that added together give a triangular number (1326 = T₅₁).

The spelling of 1213113 in words is "one million, two hundred thirteen thousand, one hundred thirteen".