111213220330123 has 4 divisors (see below), whose sum is σ = 111214132312408. Its totient is φ = 111212308347840.

The previous prime is 111213220330109. The next prime is 111213220330159. The reversal of 111213220330123 is 321033022312111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111213220330123 is a prime.

It is a super-2 number, since 2×111213220330123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111213220334123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455808198 + ... + 456052123.

It is an arithmetic number, because the mean of its divisors is an integer number (27803533078102).

Almost surely, 2^{111213220330123} is an apocalyptic number.

111213220330123 is a deficient number, since it is larger than the sum of its proper divisors (911982285).

111213220330123 is an equidigital number, since it uses as much as digits as its factorization.

111213220330123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911982284.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 111213220330123 its reverse (321033022312111), we get a palindrome (432246242642234).

The spelling of 111213220330123 in words is "one hundred eleven trillion, two hundred thirteen billion, two hundred twenty million, three hundred thirty thousand, one hundred twenty-three".