113130033221 has 4 divisors (see below), whose sum is σ = 113157277932. Its totient is φ = 113102788512.

The previous prime is 113130033199. The next prime is 113130033251. The reversal of 113130033221 is 122330031311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9648150625 + 103481882596 = 98225^2 + 321686^2 .

It is a cyclic number.

It is not a de Polignac number, because 113130033221 - 2⁶ = 113130033157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 113130033193 and 113130033202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113130033251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13616126 + ... + 13624431.

It is an arithmetic number, because the mean of its divisors is an integer number (28289319483).

Almost surely, 2^113130033221 is an apocalyptic number.

It is an amenable number.

113130033221 is a deficient number, since it is larger than the sum of its proper divisors (27244711).

113130033221 is an equidigital number, since it uses as much as digits as its factorization.

113130033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27244710.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 113130033221 its reverse (122330031311), we get a palindrome (235460064532).

The spelling of 113130033221 in words is "one hundred thirteen billion, one hundred thirty million, thirty-three thousand, two hundred twenty-one".