1190121280689 has 32 divisors (see below), whose sum is σ = 1755839213568. Its totient is φ = 710975888000.

The previous prime is 1190121280681. The next prime is 1190121280697. The reversal of 1190121280689 is 9860821210911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1190121280681) and next prime (1190121280697).

It is a cyclic number.

It is not a de Polignac number, because 1190121280689 - 2³ = 1190121280681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1190121280681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11530069 + ... + 11632829.

It is an arithmetic number, because the mean of its divisors is an integer number (54869975424).

Almost surely, 2^{1190121280689} is an apocalyptic number.

It is an amenable number.

1190121280689 is a deficient number, since it is larger than the sum of its proper divisors (565717932879).

1190121280689 is a wasteful number, since it uses less digits than its factorization.

1190121280689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107789.

The product of its (nonzero) digits is 124416, while the sum is 48.

The spelling of 1190121280689 in words is "one trillion, one hundred ninety billion, one hundred twenty-one million, two hundred eighty thousand, six hundred eighty-nine".