1113338121 has 16 divisors (see below), whose sum is σ = 1697212800. Its totient is φ = 635931648.

The previous prime is 1113338089. The next prime is 1113338137. The reversal of 1113338121 is 1218333111.

It is a happy number.

It is not a de Polignac number, because 1113338121 - 2⁵ = 1113338089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113338091 and 1113338100.

It is not an unprimeable number, because it can be changed into a prime (1113338221) 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 15 ways as a sum of consecutive naturals, for example, 49065 + ... + 68073.

It is an arithmetic number, because the mean of its divisors is an integer number (106075800).

Almost surely, 2^1113338121 is an apocalyptic number.

It is an amenable number.

1113338121 is a deficient number, since it is larger than the sum of its proper divisors (583874679).

1113338121 is a wasteful number, since it uses less digits than its factorization.

1113338121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21808.

The product of its digits is 432, while the sum is 24.

The square root of 1113338121 is about 33366.7217598613. The cubic root of 1113338121 is about 1036.4356906008.

The spelling of 1113338121 in words is "one billion, one hundred thirteen million, three hundred thirty-eight thousand, one hundred twenty-one".