1121330817 has 8 divisors (see below), whose sum is σ = 1661230880. Its totient is φ = 747553860.

The previous prime is 1121330807. The next prime is 1121330839. The reversal of 1121330817 is 7180331211.

It is a happy number.

It is not a de Polignac number, because 1121330817 - 2¹⁶ = 1121265281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 41530771 = 1121330817 / (1 + 1 + 2 + 1 + 3 + 3 + 0 + 8 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121330807) 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, 20765359 + ... + 20765412.

It is an arithmetic number, because the mean of its divisors is an integer number (207653860).

Almost surely, 2^1121330817 is an apocalyptic number.

It is an amenable number.

1121330817 is a deficient number, since it is larger than the sum of its proper divisors (539900063).

1121330817 is an equidigital number, since it uses as much as digits as its factorization.

1121330817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41530780 (or 41530774 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1121330817 is about 33486.2780404153. The cubic root of 1121330817 is about 1038.9099825272.

The spelling of 1121330817 in words is "one billion, one hundred twenty-one million, three hundred thirty thousand, eight hundred seventeen".