113031232221 has 8 divisors (see below), whose sum is σ = 159573504384. Its totient is φ = 70921557440.

The previous prime is 113031232217. The next prime is 113031232247. The reversal of 113031232221 is 122232130311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113031232221 - 2² = 113031232217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113031239221) 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, 1108149285 + ... + 1108149386.

It is an arithmetic number, because the mean of its divisors is an integer number (19946688048).

Almost surely, 2^113031232221 is an apocalyptic number.

It is an amenable number.

113031232221 is a deficient number, since it is larger than the sum of its proper divisors (46542272163).

113031232221 is a wasteful number, since it uses less digits than its factorization.

113031232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216298691.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 113031232221 its reverse (122232130311), we get a palindrome (235263362532).

The spelling of 113031232221 in words is "one hundred thirteen billion, thirty-one million, two hundred thirty-two thousand, two hundred twenty-one".