1121111120001 has 8 divisors (see below), whose sum is σ = 1501017378784. Its totient is φ = 744306137280.

The previous prime is 1121111119993. The next prime is 1121111120021. The reversal of 1121111120001 is 1000211111211.

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

It is not a de Polignac number, because 1121111120001 - 2³ = 1121111119993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121111120021) 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, 775318171 + ... + 775319616.

It is an arithmetic number, because the mean of its divisors is an integer number (187627172348).

Almost surely, 2^{1121111120001} is an apocalyptic number.

It is an amenable number.

1121111120001 is a deficient number, since it is larger than the sum of its proper divisors (379906258783).

1121111120001 is a wasteful number, since it uses less digits than its factorization.

1121111120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550638031.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1121111120001 its reverse (1000211111211), we get a palindrome (2121322231212).

The spelling of 1121111120001 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, one hundred twenty thousand, one".