113320131232221 has 6 divisors (see below), whose sum is σ = 163684634002110. Its totient is φ = 75546754154808.

The previous prime is 113320131232213. The next prime is 113320131232229. The reversal of 113320131232221 is 122232131023311.

113320131232221 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 2 + 0 + 1 + 312 + 322 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (113320131232213) and next prime (113320131232229).

It can be written as a sum of positive squares in only one way, i.e., 65563255128996 + 47756876103225 = 8097114^2 + 6910635^2 .

It is not a de Polignac number, because 113320131232221 - 2³ = 113320131232213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113320131232229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6295562846226 + ... + 6295562846243.

It is an arithmetic number, because the mean of its divisors is an integer number (27280772333685).

Almost surely, 2^{113320131232221} is an apocalyptic number.

It is an amenable number.

113320131232221 is a deficient number, since it is larger than the sum of its proper divisors (50364502769889).

113320131232221 is a wasteful number, since it uses less digits than its factorization.

113320131232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591125692475 (or 12591125692472 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 113320131232221 its reverse (122232131023311), we get a palindrome (235552262255532).

The spelling of 113320131232221 in words is "one hundred thirteen trillion, three hundred twenty billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred twenty-one".