221113113423 has 8 divisors (see below), whose sum is σ = 296796126000. Its totient is φ = 146419421568.

The previous prime is 221113113379. The next prime is 221113113439. The reversal of 221113113423 is 324311311122.

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

It is not a de Polignac number, because 221113113423 - 2¹⁸ = 221112851279 is a prime.

It is a super-2 number, since 2×221113113423² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221113113393 and 221113113402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221113113493) 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, 247329658 + ... + 247330551.

It is an arithmetic number, because the mean of its divisors is an integer number (37099515750).

Almost surely, 2^221113113423 is an apocalyptic number.

221113113423 is a deficient number, since it is larger than the sum of its proper divisors (75683012577).

221113113423 is a wasteful number, since it uses less digits than its factorization.

221113113423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494660361.

The product of its digits is 864, while the sum is 24.

Adding to 221113113423 its reverse (324311311122), we get a palindrome (545424424545).

The spelling of 221113113423 in words is "two hundred twenty-one billion, one hundred thirteen million, one hundred thirteen thousand, four hundred twenty-three".