1111441342121 has 4 divisors (see below), whose sum is σ = 1212481464144. Its totient is φ = 1010401220100.

The previous prime is 1111441342103. The next prime is 1111441342147. The reversal of 1111441342121 is 1212431441111.

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 1111441342121 - 2²⁶ = 1111374233257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111441342021) 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 3 ways as a sum of consecutive naturals, for example, 50520060995 + ... + 50520061016.

It is an arithmetic number, because the mean of its divisors is an integer number (303120366036).

Almost surely, 2^{1111441342121} is an apocalyptic number.

1111441342121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111441342121 is a deficient number, since it is larger than the sum of its proper divisors (101040122023).

1111441342121 is a wasteful number, since it uses less digits than its factorization.

1111441342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101040122022.

The product of its digits is 768, while the sum is 26.

Adding to 1111441342121 its reverse (1212431441111), we get a palindrome (2323872783232).

The spelling of 1111441342121 in words is "one trillion, one hundred eleven billion, four hundred forty-one million, three hundred forty-two thousand, one hundred twenty-one".