221130331311423 has 8 divisors (see below), whose sum is σ = 294843851955328. Its totient is φ = 147418515770904.

The previous prime is 221130331311401. The next prime is 221130331311431. The reversal of 221130331311423 is 324113133031122.

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

It is not a de Polignac number, because 221130331311423 - 2¹⁷ = 221130331180351 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 (221130331311443) 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, 425973211 + ... + 426492012.

It is an arithmetic number, because the mean of its divisors is an integer number (36855481494416).

Almost surely, 2^{221130331311423} is an apocalyptic number.

221130331311423 is a deficient number, since it is larger than the sum of its proper divisors (73713520643905).

221130331311423 is an equidigital number, since it uses as much as digits as its factorization.

221130331311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852551693.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 221130331311423 its reverse (324113133031122), we get a palindrome (545243464342545).

The spelling of 221130331311423 in words is "two hundred twenty-one trillion, one hundred thirty billion, three hundred thirty-one million, three hundred eleven thousand, four hundred twenty-three".