1113221013 has 32 divisors (see below), whose sum is σ = 1611058176. Its totient is φ = 681170688.

The previous prime is 1113221003. The next prime is 1113221041. The reversal of 1113221013 is 3101223111.

It is a happy number.

It is not a de Polignac number, because 1113221013 - 2⁵ = 1113220981 is a prime.

It is a super-2 number, since 2×1113221013² = 2478522047569492338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113220983 and 1113221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113221003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350370 + ... + 353532.

It is an arithmetic number, because the mean of its divisors is an integer number (50345568).

Almost surely, 2^1113221013 is an apocalyptic number.

It is an amenable number.

1113221013 is a deficient number, since it is larger than the sum of its proper divisors (497837163).

1113221013 is a wasteful number, since it uses less digits than its factorization.

1113221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1113221013 is about 33364.9668514746. The cubic root of 1113221013 is about 1036.3993496892.

Adding to 1113221013 its reverse (3101223111), we get a palindrome (4214444124).

The spelling of 1113221013 in words is "one billion, one hundred thirteen million, two hundred twenty-one thousand, thirteen".