1121020020111 has 8 divisors (see below), whose sum is σ = 1494706920064. Its totient is φ = 747339900120.

The previous prime is 1121020020103. The next prime is 1121020020121. The reversal of 1121020020111 is 1110200201211.

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

It is not a de Polignac number, because 1121020020111 - 2³ = 1121020020103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295755 + ... + 1980156.

It is an arithmetic number, because the mean of its divisors is an integer number (186838365008).

Almost surely, 2^{1121020020111} is an apocalyptic number.

1121020020111 is a deficient number, since it is larger than the sum of its proper divisors (373686899953).

1121020020111 is a wasteful number, since it uses less digits than its factorization.

1121020020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389981.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121020020111 its reverse (1110200201211), we get a palindrome (2231220221322).

The spelling of 1121020020111 in words is "one trillion, one hundred twenty-one billion, twenty million, twenty thousand, one hundred eleven".