113021441 has 4 divisors (see below), whose sum is σ = 121715412. Its totient is φ = 104327472.

The previous prime is 113021431. The next prime is 113021459. The reversal of 113021441 is 144120311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144120311 = 3499 ⋅41189.

It can be written as a sum of positive squares in 2 ways, for example, as 6105841 + 106915600 = 2471^2 + 10340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113021441 is a prime.

It is a super-2 number, since 2×113021441² = 25547692251432962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113021401) 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 3 ways as a sum of consecutive naturals, for example, 4346966 + ... + 4346991.

It is an arithmetic number, because the mean of its divisors is an integer number (30428853).

Almost surely, 2^113021441 is an apocalyptic number.

It is an amenable number.

113021441 is a deficient number, since it is larger than the sum of its proper divisors (8693971).

113021441 is an equidigital number, since it uses as much as digits as its factorization.

113021441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693970.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 113021441 is about 10631.1542647071. The cubic root of 113021441 is about 483.4893884777.

Adding to 113021441 its reverse (144120311), we get a palindrome (257141752).

The spelling of 113021441 in words is "one hundred thirteen million, twenty-one thousand, four hundred forty-one".