1141990821091 has 8 divisors (see below), whose sum is σ = 1151726177744. Its totient is φ = 1132288748640.

The previous prime is 1141990821089. The next prime is 1141990821133. The reversal of 1141990821091 is 1901280991411.

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

It is a cyclic number.

It is not a de Polignac number, because 1141990821091 - 2¹ = 1141990821089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141990821001) 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, 8252136 + ... + 8389381.

It is an arithmetic number, because the mean of its divisors is an integer number (143965772218).

Almost surely, 2^{1141990821091} is an apocalyptic number.

1141990821091 is a deficient number, since it is larger than the sum of its proper divisors (9735356653).

1141990821091 is a wasteful number, since it uses less digits than its factorization.

1141990821091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16642101.

The product of its (nonzero) digits is 46656, while the sum is 46.

The spelling of 1141990821091 in words is "one trillion, one hundred forty-one billion, nine hundred ninety million, eight hundred twenty-one thousand, ninety-one".