1121880213289 has 16 divisors (see below), whose sum is σ = 1235326847040. Its totient is φ = 1010346644160.

The previous prime is 1121880213287. The next prime is 1121880213301. The reversal of 1121880213289 is 9823120881211.

It is a cyclic number.

It is not a de Polignac number, because 1121880213289 - 2¹ = 1121880213287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121880213287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6585939 + ... + 6754135.

It is an arithmetic number, because the mean of its divisors is an integer number (77207927940).

Almost surely, 2^{1121880213289} is an apocalyptic number.

It is an amenable number.

1121880213289 is a deficient number, since it is larger than the sum of its proper divisors (113446633751).

1121880213289 is a wasteful number, since it uses less digits than its factorization.

1121880213289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173880.

The product of its (nonzero) digits is 110592, while the sum is 46.

The spelling of 1121880213289 in words is "one trillion, one hundred twenty-one billion, eight hundred eighty million, two hundred thirteen thousand, two hundred eighty-nine".