111212313213 has 8 divisors (see below), whose sum is σ = 148518083776. Its totient is φ = 74024042400.

The previous prime is 111212313211. The next prime is 111212313283. The reversal of 111212313213 is 312313212111.

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

It is not a de Polignac number, because 111212313213 - 2¹ = 111212313211 is a prime.

It is a super-2 number, since 2×111212313213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111212313213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212313211) 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, 29372728 + ... + 29376513.

It is an arithmetic number, because the mean of its divisors is an integer number (18564760472).

Almost surely, 2^111212313213 is an apocalyptic number.

It is an amenable number.

111212313213 is a deficient number, since it is larger than the sum of its proper divisors (37305770563).

111212313213 is an equidigital number, since it uses as much as digits as its factorization.

111212313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58749875.

The product of its digits is 216, while the sum is 21.

Adding to 111212313213 its reverse (312313212111), we get a palindrome (423525525324).

The spelling of 111212313213 in words is "one hundred eleven billion, two hundred twelve million, three hundred thirteen thousand, two hundred thirteen".