1121001193 has 4 divisors (see below), whose sum is σ = 1207232068. Its totient is φ = 1034770320.

The previous prime is 1121001151. The next prime is 1121001227. The reversal of 1121001193 is 3911001211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271162089 + 849839104 = 16467^2 + 29152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121001193 - 2⁹ = 1121000681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121001193.

It is not an unprimeable number, because it can be changed into a prime (1121001143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43115418 + ... + 43115443.

It is an arithmetic number, because the mean of its divisors is an integer number (301808017).

Almost surely, 2^1121001193 is an apocalyptic number.

1121001193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1121001193 is a deficient number, since it is larger than the sum of its proper divisors (86230875).

1121001193 is an equidigital number, since it uses as much as digits as its factorization.

1121001193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86230874.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1121001193 is about 33481.3559014566. The cubic root of 1121001193 is about 1038.8081739679.

The spelling of 1121001193 in words is "one billion, one hundred twenty-one million, one thousand, one hundred ninety-three".