1111000312121 has 8 divisors (see below), whose sum is σ = 1276159896000. Its totient is φ = 947452041648.

The previous prime is 1111000312043. The next prime is 1111000312133. The reversal of 1111000312121 is 1212130001111.

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

It is not a de Polignac number, because 1111000312121 - 2¹⁰ = 1111000311097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111000312096 and 1111000312105.

It is not an unprimeable number, because it can be changed into a prime (1111000312171) 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, 402826871 + ... + 402829628.

It is an arithmetic number, because the mean of its divisors is an integer number (159519987000).

Almost surely, 2^{1111000312121} is an apocalyptic number.

It is an amenable number.

1111000312121 is a deficient number, since it is larger than the sum of its proper divisors (165159583879).

1111000312121 is an equidigital number, since it uses as much as digits as its factorization.

1111000312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805656703.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1111000312121 its reverse (1212130001111), we get a palindrome (2323130313232).

The spelling of 1111000312121 in words is "one trillion, one hundred eleven billion, three hundred twelve thousand, one hundred twenty-one".