111144223213 has 8 divisors (see below), whose sum is σ = 119717761536. Its totient is φ = 102882450000.

The previous prime is 111144223207. The next prime is 111144223303. The reversal of 111144223213 is 312322441111.

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

It is a de Polignac number, because none of the positive numbers 2^k-111144223213 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 (111144283213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77940538 + ... + 77941963.

It is an arithmetic number, because the mean of its divisors is an integer number (14964720192).

Almost surely, 2^111144223213 is an apocalyptic number.

It is an amenable number.

111144223213 is a deficient number, since it is larger than the sum of its proper divisors (8573538323).

111144223213 is a wasteful number, since it uses less digits than its factorization.

111144223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155882555.

The product of its digits is 1152, while the sum is 25.

Adding to 111144223213 its reverse (312322441111), we get a palindrome (423466664324).

The spelling of 111144223213 in words is "one hundred eleven billion, one hundred forty-four million, two hundred twenty-three thousand, two hundred thirteen".