113112231320221 has 32 divisors (see below), whose sum is σ = 136689556709376. Its totient is φ = 91546421400000.

The previous prime is 113112231320203. The next prime is 113112231320233. The reversal of 113112231320221 is 122023132211311.

It is not a de Polignac number, because 113112231320221 - 2¹¹ = 113112231318173 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 (113112231300221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2339346 + ... + 15221596.

It is an arithmetic number, because the mean of its divisors is an integer number (4271548647168).

Almost surely, 2^{113112231320221} is an apocalyptic number.

It is an amenable number.

113112231320221 is a deficient number, since it is larger than the sum of its proper divisors (23577325389155).

113112231320221 is a wasteful number, since it uses less digits than its factorization.

113112231320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12883273.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 113112231320221 its reverse (122023132211311), we get a palindrome (235135363531532).

The spelling of 113112231320221 in words is "one hundred thirteen trillion, one hundred twelve billion, two hundred thirty-one million, three hundred twenty thousand, two hundred twenty-one".