113311121 has 8 divisors (see below), whose sum is σ = 141271104. Its totient is φ = 88294320.

The previous prime is 113311097. The next prime is 113311123. The reversal of 113311121 is 121113311.

It is a happy number.

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 113311121 - 2¹⁸ = 113048977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113311096 and 113311105.

It is not an unprimeable number, because it can be changed into a prime (113311123) 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, 735710 + ... + 735863.

It is an arithmetic number, because the mean of its divisors is an integer number (17658888).

Almost surely, 2^113311121 is an apocalyptic number.

113311121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113311121 is a deficient number, since it is larger than the sum of its proper divisors (27959983).

113311121 is a wasteful number, since it uses less digits than its factorization.

113311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471591.

The product of its digits is 18, while the sum is 14.

The square root of 113311121 is about 10644.7696546238. The cubic root of 113311121 is about 483.9021057960.

Adding to 113311121 its reverse (121113311), we get a palindrome (234424432).

The spelling of 113311121 in words is "one hundred thirteen million, three hundred eleven thousand, one hundred twenty-one".