113201131223321 has 4 divisors (see below), whose sum is σ = 113201281038132. Its totient is φ = 113200981408512.

The previous prime is 113201131223249. The next prime is 113201131223353. The reversal of 113201131223321 is 123322131102311.

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 41538811293721 + 71662319929600 = 6445061^2 + 8465360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113201131223321 is a prime.

It is a super-2 number, since 2×113201131223321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113201131223381) 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, 73768220 + ... + 75287133.

It is an arithmetic number, because the mean of its divisors is an integer number (28300320259533).

Almost surely, 2^{113201131223321} is an apocalyptic number.

It is an amenable number.

113201131223321 is a deficient number, since it is larger than the sum of its proper divisors (149814811).

113201131223321 is an equidigital number, since it uses as much as digits as its factorization.

113201131223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149814810.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 113201131223321 its reverse (123322131102311), we get a palindrome (236523262325632).

The spelling of 113201131223321 in words is "one hundred thirteen trillion, two hundred one billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred twenty-one".