111144031043321 has 4 divisors (see below), whose sum is σ = 113508797661312. Its totient is φ = 108779264425332.

The previous prime is 111144031043261. The next prime is 111144031043329. The reversal of 111144031043321 is 123340130441111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111144031043321 - 2⁴⁶ = 40775286865657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111144031043329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182383308925 + ... + 1182383309018.

It is an arithmetic number, because the mean of its divisors is an integer number (28377199415328).

Almost surely, 2^{111144031043321} is an apocalyptic number.

It is an amenable number.

111144031043321 is a deficient number, since it is larger than the sum of its proper divisors (2364766617991).

111144031043321 is an equidigital number, since it uses as much as digits as its factorization.

111144031043321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364766617990.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 111144031043321 its reverse (123340130441111), we get a palindrome (234484161484432).

The spelling of 111144031043321 in words is "one hundred eleven trillion, one hundred forty-four billion, thirty-one million, forty-three thousand, three hundred twenty-one".