1120311111121 has 4 divisors (see below), whose sum is σ = 1120848948592. Its totient is φ = 1119773273652.

The previous prime is 1120311111109. The next prime is 1120311111137. The reversal of 1120311111121 is 1211111130211.

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 1120311111121 - 2⁹ = 1120311110609 is a prime.

It is a super-3 number, since 3×1120311111121³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120311111095 and 1120311111104.

It is not an unprimeable number, because it can be changed into a prime (1120311111191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268915611 + ... + 268919776.

It is an arithmetic number, because the mean of its divisors is an integer number (280212237148).

Almost surely, 2^{1120311111121} is an apocalyptic number.

It is an amenable number.

1120311111121 is a deficient number, since it is larger than the sum of its proper divisors (537837471).

1120311111121 is an equidigital number, since it uses as much as digits as its factorization.

1120311111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537837470.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1120311111121 its reverse (1211111130211), we get a palindrome (2331422241332).

The spelling of 1120311111121 in words is "one trillion, one hundred twenty billion, three hundred eleven million, one hundred eleven thousand, one hundred twenty-one".