1121353161 has 8 divisors (see below), whose sum is σ = 1495515840. Its totient is φ = 747379632.

The previous prime is 1121353141. The next prime is 1121353187. The reversal of 1121353161 is 1613531211.

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

It is not a de Polignac number, because 1121353161 - 2⁷ = 1121353033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121353141) 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 7 ways as a sum of consecutive naturals, for example, 32821 + ... + 57618.

It is an arithmetic number, because the mean of its divisors is an integer number (186939480).

Almost surely, 2^1121353161 is an apocalyptic number.

It is an amenable number.

1121353161 is a deficient number, since it is larger than the sum of its proper divisors (374162679).

1121353161 is an equidigital number, since it uses as much as digits as its factorization.

1121353161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94575.

The product of its digits is 540, while the sum is 24.

The square root of 1121353161 is about 33486.6116679487. The cubic root of 1121353161 is about 1038.9168830333.

Adding to 1121353161 its reverse (1613531211), we get a palindrome (2734884372).

The spelling of 1121353161 in words is "one billion, one hundred twenty-one million, three hundred fifty-three thousand, one hundred sixty-one".