111144244031 has 8 divisors (see below), whose sum is σ = 115151295600. Its totient is φ = 107148825280.

The previous prime is 111144243953. The next prime is 111144244033. The reversal of 111144244031 is 130442441111.

It is a happy number.

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-111144244031 is a prime.

It is a super-2 number, since 2×111144244031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111144244033) 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, 2888750 + ... + 2926971.

It is an arithmetic number, because the mean of its divisors is an integer number (14393911950).

Almost surely, 2^111144244031 is an apocalyptic number.

111144244031 is a deficient number, since it is larger than the sum of its proper divisors (4007051569).

111144244031 is an equidigital number, since it uses as much as digits as its factorization.

111144244031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5816409.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 111144244031 its reverse (130442441111), we get a palindrome (241586685142).

The spelling of 111144244031 in words is "one hundred eleven billion, one hundred forty-four million, two hundred forty-four thousand, thirty-one".