113133321221 has 8 divisors (see below), whose sum is σ = 115094263200. Its totient is φ = 111173826960.

The previous prime is 113133321187. The next prime is 113133321239. The reversal of 113133321221 is 122123331311.

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 113133321221 - 2⁶ = 113133321157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113133321241) 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, 203690 + ... + 517451.

It is an arithmetic number, because the mean of its divisors is an integer number (14386782900).

Almost surely, 2^113133321221 is an apocalyptic number.

It is an amenable number.

113133321221 is a deficient number, since it is larger than the sum of its proper divisors (1960941979).

113133321221 is an equidigital number, since it uses as much as digits as its factorization.

113133321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723859.

The product of its digits is 648, while the sum is 23.

Adding to 113133321221 its reverse (122123331311), we get a palindrome (235256652532).

The spelling of 113133321221 in words is "one hundred thirteen billion, one hundred thirty-three million, three hundred twenty-one thousand, two hundred twenty-one".