111212213023 has 8 divisors (see below), whose sum is σ = 112796305776. Its totient is φ = 109633934400.

The previous prime is 111212213009. The next prime is 111212213051. The reversal of 111212213023 is 320312212111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111212213023 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 (111212216023) 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, 1414998 + ... + 1491523.

It is an arithmetic number, because the mean of its divisors is an integer number (14099538222).

Almost surely, 2^111212213023 is an apocalyptic number.

111212213023 is a deficient number, since it is larger than the sum of its proper divisors (1584092753).

111212213023 is an equidigital number, since it uses as much as digits as its factorization.

111212213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907065.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111212213023 its reverse (320312212111), we get a palindrome (431524425134).

The spelling of 111212213023 in words is "one hundred eleven billion, two hundred twelve million, two hundred thirteen thousand, twenty-three".